Ultrafast nonlinear optical processes. Medical search. Frequent questions

Mukamel, S. Principles of Nonlinear Optical Spectroscopy (Oxford Univ. (nature.com)
Diagnostic Methodologies and Instrumentation [4] comprises of activities in ultrafast and nonlinear interactions of light with bulk and nanostructured materials, analytical spectroscopy and instrumentation for the analysis of solids and liquids, opto-sensing research in photophysics/chemistry involving micro/nanostructured materials. (forth.gr)
The PCA detector will be used in Macalester College Professor James Heyman's laboratory for ultrafast THz spectroscopy. (dmphotonics.com)
James Heyman is interested in experimental condensed matter physics and ultrafast laser spectroscopy. (dmphotonics.com)
Our principle experimental technique is ultrafast THz spectroscopy, which lets us impulsively excite a material with a femtosecond optical pulse or single-cycle electromagnetic pulse, and record the resulting motion of charge in time. (dmphotonics.com)
Many different disciplines, such as ultrafast spectroscopy, semiconductor device fabrication, bio-medical imaging and more, involve the recent development of THz technology. (dmphotonics.com)
Previous THz research activities have concentrated on generation and detection, but the focus has now shifted to practical applications of this technology, such as high-speed optoelectronic signal processing and molecular spectroscopy. (dmphotonics.com)
Ultrafast terahertz spectroscopy can be used to probe charge and spin dynamics in semiconductors. (dmphotonics.com)
Since its generation in the 1990s, the research content and scope of ultrafast optics have been constantly expanded and deepened, which is of great significance to the development of laser technology, spectroscopy and material structure analysis. (usst.edu.cn)
Research on ultrafast nonlinear optics mainly includes the generation and application of femtosecond-attosecond pulses, THz - visible light - XUV ultrafast laser technology, ultrafast and ultrastrong laser physics, ultrafast spectroscopy, sensitive detection based on ultrafast laser, as well as the interdisciplinary application of ultrafast laser technology, information science, material science, and life science etc. (usst.edu.cn)
Optical amplifiers are essential in optical communication systems as they compensate loss induced by the transmission fiber ensuring signal integrity of the information being transmitted, as well as in other applications such as spectroscopy. (etag.ee)
We present time-resolved magneto-optical spectroscopy on the magnetic Mott-Hubbard-insulating Kitaev spin liquid candidate α-RuCl 3 to investigate the nonequilibrium dynamics of its antiferromagnetically ordered zigzag groundstate after photoexcitation. (rsc.org)
These materials have been analyzed using time-resolved absorption and fluorescence spectroscopy and microscopy as well as a nonlinear and quantum optical spectroscopy. (phys-acs.org)
The exciting prospect of compact highly nonlinear waveguides operating over broad wavelength ranges is likely to impact a multitude of application areas, spanning from communications to absorption spectroscopy, chemical and biological sensing and LIDAR applications. (southampton.ac.uk)
During her master's studies, she fabricated plasmonic nanoparticle arrays, characterized their optical properties using Raman spectroscopy for biosensing applications. (tudelft.nl)
During my master project I worked at the group of Ultrafast Spectroscopy of Correlated Matter (USCM) where I studied the dynamic non-collinear magnetization states in a Gd/FeCo multilayer. (tudelft.nl)
TOPTICA's ultrafast fiber laser FemtoFiber dichro midIR generates powerful radiation tunable between 3 μm - 15 μm that is ideally suited for spectroscopy and (nearfield) microscopy applications. (rp-photonics.com)
The Ultrafast Micro-Spectroscopy Facility is a national facility for materials characterisation. (edu.au)

However, they typically require intense laser sources and long interaction lengths, requirements that often render nonlinear optics incompatible with new nanophotonic architectures in integrated optics and metasurface devices. (nature.com)
Garmire, E. Nonlinear optics in daily life. (nature.com)
Nonlinear optics for high-speed digital information processing. (nature.com)
Boyd, R. W. Nonlinear Optics . (nature.com)
the third-order nonlinear coefficient of YSZ is comparable with the one of silicon nitride, which is already being used in nonlinear optics. (opticsjournal.net)
D. Strickland and G. Mourou, "Compression of amplified chirped optical pulses," Optics Communications , pp. 219-221, 1985. (max-planck-innovation.de)
There is little barrier between research and teaching at a liberal arts college like Macalester, and Heyman's ultrafast THz lab is also used for demonstrations and instructional labs in the courses Modern Physics, Optics and Electromagnetic Theory. (dmphotonics.com)
Therefore, researchers in the field of nonlinear optics have been pursuing alternative materials, which has recently led to the introduction of Transparent Conducting Oxides (TCOs) as highly-nonlinear materials. (utwente.nl)
The ultrashort optical pulse excitation and ultrastrong field of optical pulses have greatly enriched and deepened the interaction between light and matters, giving rise to a new and promising discipline - ultrafast optics. (usst.edu.cn)
At present, ultrafast nonlinear optics has become a cutting-edge subject and hot spot in the field of optics. (usst.edu.cn)
Having been engaged in ultrafast nonlinear optics and ultrastrong laser field physics for a long time, the team has owned super clean laboratories and 20 precision optical platforms. (usst.edu.cn)
In the past ten years, he has been engaged in the research of ultra-fast nonlinear optics. (usst.edu.cn)
As one of the core teams of the Future Optics International Laboratory of USST, the team members are determined to make their contributions to building the Future Optics International Laboratory into a first-class international innovation platform, and building Optical Engineering into an international first-class discipline with representative achievements of global influence. (usst.edu.cn)
The researchers obtained InSe nanosheets with suitable thickness and band gap by a liquid-phase exfoliation method, and systematically investigated their nonlinear optics and ultrafast carrier dynamics at different pulse width scales (ns and fs). (cookingmamacookoff.com)
A review on two-photon polymerization(TPL) for Optics and Photonics at Advanced Functional Materials: This work (reachable at this link) reviews the recent progress in the TPL related optical research: it starts with the fundamentals of TPL and material formulation, then discusses novel fabrication methods, and a wide range of optical applications. (in2sight.eu)
assess and find optical methods to develop new advanced technological applications, methods and systems based on polarization, non-linear, optics, acousto-optics, electro-optics, coherence and ultrashort pulses. (lu.se)
Light propagation in anisotropic materials, · Acusto-optical effects and modulators, · Electro-optical effects and modulators, · Non-linear interaction between light and matter, · Ultrafast optics, propagation of short laser pulses in dispersive non-linear media, · Basic laser safety. (lu.se)
The teaching consists of lectures, two laboratory sessions (non-linear optics, ultrafast optics (titanium-sapphire laser)) including preparatory laser safety, group work and a project in optical design by means of a modern ray tracing program. (lu.se)
His main research area is quantum optics and quantum information processing using rare-earth materials. (lu.se)

Efficient nonlinear optical interactions are essential for many applications in modern photonics. (nature.com)
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. (wikipedia.org)
Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups, as a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips. (wikipedia.org)
Silicon photonics, however, is expected to play a significant role in computercom as well, where optical links have a reach in the centimeter to meter range. (wikipedia.org)
Optical interconnects may provide a way forward, and silicon photonics may prove particularly useful, once integrated on the standard silicon chips. (wikipedia.org)
New nonlinear functionalities need to be implemented in photonics, and complex oxides are considered as promising candidates due to their wide panel of attributes. (opticsjournal.net)
Prior to joining UC Davis in 1999, he was a Senior Research Scientist at Bellcore, leading technical efforts in integrated photonics, optical networking, and systems integration. (kaist.ac.kr)
They play a key role in photonics, underpinning technologies from mode-locked lasers to microresonator optical frequency combs. (julienfatome.com)
Then in 2001, an important milestone in ultrafast photonics was reached. (photonics.com)

Once the pulses leave the regenerative amplifier, the optical isolator separates input and output beam paths and sends the pulses to the multipass amplifier (figure 1, green). (max-planck-innovation.de)
Students regularly collaborate with him in his NSF-funded research on ultrafast processes in semiconductors and the generation of picosecond pulses of electromagnetic radiation. (dmphotonics.com)
But the research team's new ultrafast laser technique is label-free-instead, they fire short, 20-fs-long laser pulses into the tissue, and when three photons converge at the same time and place, the photons interact with the nonlinear optical properties of the tissue. (laserfocusworld.com)
Emitting pulses in the picosecond and femtosecond regimes, ultrafast lasers are delivering more power, more flexibility, and smaller footprints to meet growing demand from the industrial sector. (photonics.com)
Mediated by nonlinear optical processes, the laser light is converted into stable optical pulses - dissipative Kerr solitons - forming a regular pulse train with a broadband optical spectrum. (techbriefs.com)
By using ultrashort optical pulses to sample the analog waveforms, multiple channels can be interleaved and combined resulting in TDMA frames of pulsed analog data. (strath.ac.uk)
When ultrafast laser pulses are focused inside transparent materials such as glass, the optical intensity in the focal area can usually become high enough to initiate the nonlinear optical absorption and then the filamentary propagation of optical pulses. (lia.org)
Our experiments are performed in a nonlinear optical ring resonator, where dissipative solitons arise in the form of persisting pulses of light known as Kerr cavity solitons. (julienfatome.com)
Attosecond pulses are typically generated using high-harmonic generation, which occurs when an intense infrared laser pulse is focused on a material to prompt strong nonlinear interactions. (photonics.com)
Atoms and molecules excited with short intense laser pulses are ionized by single or multiphoton processes. (lu.se)

In this Review, we survey the work that has been performed on ENZ materials and the related near-zero-index materials, focusing on the observation of various nonlinear phenomena (such as intensity-dependent refraction, four-wave mixing and harmonic generation), the identification of unique field-enhancement mechanisms and the study of non-equilibrium dynamics. (nature.com)
Fig. 9: Other nonlinear phenomena in epsilon-near-zero and near-zero-index materials. (nature.com)
The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two-photon absorption and interactions between photons and free charge carriers. (wikipedia.org)
Silicon waveguides are also of great academic interest, due to their unique guiding properties, they can be used for communications, interconnects, biosensors, and they offer the possibility to support exotic nonlinear optical phenomena such as soliton propagation. (wikipedia.org)
Based on the time when collisions govern the evolution of the phenomena, modeling of ultrafast laser-material inter. (lia.org)
To this aim, photonic platforms exploiting ultrafast nonlinear phenomena have been successfully applied to the temporal stretching of optical waveforms. (julienfatome.com)
While the non-linearity inherent when saturation phenomena occur is exploited to also achieve super-resolution label-free imaging, the development of ultrashort and ultrafast pulsed laser sources has led non-linear optical (NLO) light-matter interaction become accessible (Chapter 1). (unige.it)

These materials exhibit large and ultrafast intensity-dependent refraction that originates from the enhanced light-matter interactions in the Epsilon-Near-Zero (ENZ) spectral region, where the electric permittivity of the material tends to zero. (utwente.nl)
Their research covers the development of ultrafast light source technology, ultrafast laser and material interactions, and ultrafast sensitive measurements. (usst.edu.cn)
In contrast, the techniques presented in the work are based on the multiplexing and demultiplexing of signals in the optical domain, thereby reducing nonlinear interactions between channels. (strath.ac.uk)
This paper reports the overall picture of our ongoing efforts to establish the scientific understanding of ultrafast, non-equilibrium laser-material interactions from nanometer to milimeter and from femtosecond to microsecond through comprehensive, integrated multiscale physico-chemical modeling and experimental verification. (lia.org)
During a period as visiting scientist at SRI International in Menlo Park, CA, USA he worked with coherent light-matter interactions in rare earth ion doped crystals including both fundamental aspects and applications to optical storage and processing. (lu.se)

Quantum correlations in optical angle-orbital angular momentum variables. (nature.com)
We use ultrafast optical techniques to investigate carrier transport and hot-carrier effects in semiconductors and semiconductor quantum wells. (dmphotonics.com)
Prior to joining Bellcore in 1991, he conducted research on nonlinear optical processes in quantum wells, a four-wave-mixing study of relaxation mechanisms in dye molecules, and ultrafast diffusion-driven photodetectors at Stanford University (BS'84, MS'86, PhD'91, Stanford University). (kaist.ac.kr)
Quantum coherences detected from ultrafast time-resolved absorption measurements are being explored to provide insight into the nature of the reaction coordinate for excited-state dynamics in transition metal complexes. (rsc.org)
Although generating light in this domain is neither easy to accomplish nor to maintain, its eventual mastery could benefit a considerable number of markets, including petahertz-scale electronics, ultrafast metrology for microscopy or nanoscopy, and possibly the ability to control quantum processes. (photonics.com)
The Optical Sciences Centre undertakes research that encompasses both optical and quantum sciences as well as many related areas. (edu.au)
The Optical Sciences Centre is a new state-of-the-art research facility whose staff have come together from the former Centre for Microphotonics and the Centre for Quantum and Optical Science. (edu.au)
In particular, his focus is on using a micro-cavity to enhance emissions from weak rare-earth emitters and to use this system as building block for scalable quantum information processing. (lu.se)

The study highlights the potential of Yb-Mg-doped silica glass to overcome the photodarkening effect and offers a new avenue for researchers and engineers to explore in the development of ultrafast lasers. (405nm.com)

Ultra-fast Laser Micro- and Nano-Processing [3] employs ultra-fast lasers for precise and rapid material modification at the micro- and nano- scales. (forth.gr)
With pulse lengths down to the picosecond realm and beyond, ultrashort-pulse lasers - often called ultrafast lasers - have been deployed as scientific research tools for decades. (photonics.com)
Now, however, ultrafast lasers are starting to expand beyond their traditional research niche. (photonics.com)
Before then, ultrafast lasers were a tool of last resort. (photonics.com)
But demand for industrial ultrafast lasers is also growing in the automotive, bioimaging, and medical sectors, where the tools are enabling new manufacturing capabilities or replacing other technologies, including longer-pulse-width laser processes. (photonics.com)
Ultrafast lasers are great for these applications. (photonics.com)
Because industries are always looking for ways to minimize production-related expenses, the processing quality of ultrafast lasers plays a big part in their value. (photonics.com)
As Lumentum's redesigned PicoBlade illustrates, one competitive strategy is to diminish the size of ultrafast lasers to better integrate them into various manufacturing platforms and motion systems. (photonics.com)
It has purchased the high-power fiber laser, femtosecond lasers, polarization maintaining optical fiber fusion splicer, optical fiber spectrometer, high-precision spectrum analyzer, autocorrelation, kilowatt power meter, instrument and equipment such as high-precision stepper motor. (usst.edu.cn)
His research activities at Bellcore included the next-generation Internet, reconfigurable multiwavelength optical networks (MONET), wavelength interchanging cross connects, wavelength converters, vertical-cavity lasers, and high-speed modulators. (kaist.ac.kr)
Yet, these processes are accessible at high-brilliance storage-ring based x-ray sources and x-ray free electron lasers. (aps.org)
Ultrafast lasers operating at gigahertz repetition rates have garnered significant interest due to their various applications in areas such as bio-optical imaging, light communication, material processing, microfabrication, and optical frequency combs. (405nm.com)
Anders Mikkelsen explores nanoscale device imaging to the atomic scale combined with advanced lasers, synchrotron sources and electrical/optical readout as well as surface and interface material science. (lu.se)

This research proposal deals with phase-sensitive optical parametric amplifiers (PSA) that have unique and superior properties compared with all other optical amplifiers, most notably the potential of noiseless amplification, very broad optical bandwidth, and being an enabler of a range of ultrafast all-optical functionalities. (etag.ee)

We will leverage advances in other areas e.g. low loss photonic crystal fibers and highly nonlinear materials to realize compact PSAs with unprecedented performance. (etag.ee)

G.R.A. Priem, P. Bienstman, G. Morthier, R. Baets, Effect of two-photon absorption on Kerr-nonlinear resonator behaviour , 2004 IEEE/LEOS Benelux Annual Symposium , Belgium, p.231-234 (2004). (ugent.be)
At the same time, the optical switch modulation is realized by utilizing the competitive relationship between saturable absorption at low energy and nonlinear scattering at high energy. (cookingmamacookoff.com)
The time-resolved pump-probe results indicate that the InSe dispersion has an ultrafast saturable absorption process and a photoinduced absorption process that may be caused by free carrier absorption or bandgap renormalization. (cookingmamacookoff.com)
The nonlinear absorption leads to the avalanche ionization process and plasma is generated along the filamentary area. (lia.org)
The measurement of non-linear optical absorption coefficient and refractive index can be carried out, with the same laser sources as the Raman experiment. (unipd.it)
The switch transfer function is evaluated in a pump-probe system with femtosecond and picosecond autocorrelators to measure temporal properties, an optical multichannel analyzer to measure spectral properties, a CCD or pyroelectric camera system to measure mode modification, and a multi-detector system to measure switching energy and insertion loss both in absorption and in reflection. (syr.edu)
In pump-probe microscopy, applying two pulsed laser beams with different frequencies enables exploring different non-linear processes through one platform, including sum-frequency generation, second-harmonic generation, multi-photon, transient absorption, and stimulated Raman scattering (Chapter 3). (unige.it)
Furthermore, we explored the saturation of transient absorption process using a doughnut-shaped beam, in a STED-like approach, in the imaging of single-layer Graphene (SLG) and NP-Polycarbonate. (unige.it)

Implementation of chirped pulse amplification (CPA) constitutes a well-established method to reduce the peak intensity of the laser pulse during the amplification process [1, 2]. (max-planck-innovation.de)
Before accumulating destructive nonlinear phase distortions, a multipass system using the same active amplification volume as the regenerative amplifier boosts the pulse energy to a level inaccessible inside the regenerative amplifier. (max-planck-innovation.de)
As highly complex optical instruments, ultrashort-pulse laser systems have historically been difficult to maintain and operate, requiring layers of electronics or cooling to achieve consistent pulse quality or spectral stability. (photonics.com)
In our approach, each analog signal is encoded as an envelope onto an optical pulse train. (strath.ac.uk)
The individual channels can then be extracted from the aggregate pulse stream with the use of an ultrafast optical gating device, such as the terahertz optical asymmetric demultiplexer. (strath.ac.uk)
Photo of an optical fibre where nonlinear effects on an infrared pulse generate a supercontinuum. (405nm.com)
A measurement of the space-time structure of an attosecond pulse, as seen in the nonlinear medium where it is generated. (photonics.com)

Epsilon-near-zero Al-doped ZnO for ultrafast switching at telecom wavelengths. (nature.com)
Here, leveraging both spatial and temporal phase manipulation offered by an ultrathin nonlinear metasurface, we experimentally demonstrated nonreciprocal light reflection at wavelengths around 860 nm. (nature.com)
Moreover, the measurements of the nonlinear change in transmittance () over a range of wavelengths result in a broadband nonlinear response caused by a nonuniform permittivity distribution along the thickness of the film. (utwente.nl)
Optical frequency combs consist of light with a multitude of precisely defined wavelengths - the optical spectrum then resembles the teeth of a comb. (techbriefs.com)

The selected papers in ICI 2016 can also obtain 20% discount publication fee for journal Materials and 10% discount publication fee for journal Sensors, and the peer review process will be organized and managed by MDPI. (sciforum.net)
Lumentum's PicoBlade 2 ultrafast laser was released in 2016 to target this market and has since undergone a redesign to make the technology available in a much smaller package to facilitate its integration into industrial systems. (photonics.com)

Recently, a new class of materials with a vanishing permittivity, known as epsilon-near-zero (ENZ) materials, has been reported to exhibit unprecedented ultrafast nonlinear efficiencies within sub-wavelength propagation lengths. (nature.com)
The Photonic Materials and Devices Laboratory [1] focuses on the research of materials, light propagation effects, designs, and fabrication methods for the development of Photonic Devices, with emphasis in optical fiber sensors, resonators, and microstructured optical fiber devices. (forth.gr)

The process of x-ray parametric down conversion (XPDC) of x-ray photons in a pair of x-ray (signal) and visible (idler) photons is predominantly mediated by the valence electron density and provides a valence sensitive probe of electronic structure. (aps.org)
In a recent experiment, we successfully measured the XPDC cone resulting of nonlinear x-ray scattering of photons of 10 keV from diamond, for idler energies in the range of 100 eV. (aps.org)
As in DFG, a pump source and signal photons are mixed in a nonlinear crystal to perform downconversion, but in the TOPO the signal is self-generated by the efficient OPO process. (rp-photonics.com)

It provides a comprehensive treatment of time-domain terahertz spectroscopic measurements, including methods for the generation and detection of terahertz radiation, methods for determining optical constants from time-domain measurements, and the use of femtosecond time-resolved techniques. (dmphotonics.com)
In their demonstrations, the researchers combined findings from the field of ultra-fast communications using chip-scale frequency comb sources, with results from the field of optical distance measurements. (techbriefs.com)
The system's design, as well as initial measurements of nonlinear interface optical switches based on photorefractive thin films are presented. (syr.edu)

However, it is challenging to realize efficient and ultrafast temporal modulation in a photonic system. (nature.com)
The metasurface, with travelling-wave modulation upon nonlinear Kerr building blocks, creates spatial phase gradient and multi-terahertz temporal phase wobbling, which leads to unidirectional photonic transitions in both the momentum and energy spaces. (nature.com)
Nonreciprocity with a sub-wavelength interaction length and an ultrafast modulation frequency over the THz bandwidth is technically challenging and has not been realized to date. (nature.com)
The realization of high-speed computation and communication relies on all-optical modulation of the properties of light through nonlinear interaction with matter. (utwente.nl)
As a result, improving the crystal quality of TCO films would help to reduce the undesired attenuation of the signal subject to all-optical modulation and would reduce power consumption compared to films with poor crystal quality. (utwente.nl)
Wherever relevant, the applications will be tested using the ORC's extensive telecommunications systems infrastructure, which include ultrafast optical and electronic diagnostic tools for advanced modulation formats, as well as immediate access to the UK's National Dark Fibre Facility (the UK's NDFF) for experimentation on optical transmission. (southampton.ac.uk)

Our work delivers fundamental insights at the intersection of multi-mode nonlinear optical resonators, dissipative structures, and spontaneous symmetry breaking, and expands upon our understanding of dissipative solitons in coherently driven Kerr resonators. (julienfatome.com)

This, in turn, requires materials capable of achieving large values of nonlinear change in refraction on a sub-picosecond time scale. (utwente.nl)

This demonstration was enabled by a new type of chip-scale light source developed at EPFL, which produces optical frequency combs. (techbriefs.com)
In their experiments, the researchers used two optical microchips to generate a pair of nearly identical frequency combs. (techbriefs.com)
Applications of interest include phase-sensitive amplification, wavelength conversion, the nonlinear generation of broadband frequency combs and supercontinuum generation. (southampton.ac.uk)

electrical-optical-electrical conversion process, high-bandwidth analog communication systems, terahertz optical asymmetric demultiplexer, Electrical Engineering. (strath.ac.uk)

His research interests include modelling, design and fabrication of nonlinear applications by means of resonators for ultrafast all-optical signal processing. (ugent.be)

In a typical optical link, data is first transferred from the electrical to the optical domain using an electro-optic modulator or a directly modulated laser. (wikipedia.org)
AM techniques that have been used in optical manufacturing include selective laser melting (SLM), fused deposition modeling (FDM), stereolithography (SLA), multiphoton stereolithography (MPS), direct inkjet writing, and inkjet printing. (techbriefs.com)
Since laser writing methods can create optical patterns on a substrate (one layer or more), they can be classified as AM as well. (techbriefs.com)
3-D printed optical component: out of a laser spot, a laser line is generated to illuminate a part for optical metrology. (techbriefs.com)
This technique is based on curing resins using an ultrafast laser. (techbriefs.com)
10W) at repetition rates in the kHz regime suffer from severe accumulation of nonlinear phase inside the laser gain medium and other optical components within the amplifier. (max-planck-innovation.de)
The thin-disk technology in combination with a regenerative amplifier reduces the accumulation of nonlinear effects in the laser gain medium to a minimum. (max-planck-innovation.de)
An ultrafast laser technique can reveal exactly where brain tumors are, producing images in less than a minute. (laserfocusworld.com)
A research group at VU University Amsterdam (The Netherlands) has shown that an ultrafast laser technique can reveal exactly where brain tumors are, producing images in less than a minute and enabling surgeons to remove tumors without compromising healthy tissue. (laserfocusworld.com)
A confluence of factors - including technological evolution and a broadening user base - are contributing to the burgeoning market for ultrafast laser technology. (photonics.com)
Several factors are contributing to the momentum behind the industrial ultrafast laser market that, according to market research firm reports, is poised to increase at a 16.6% compound annual growth rate over the next five years - even when accounting for a slowdown related to COVID-19. (photonics.com)
Of course, work had to be done on the laser side to ensure that ultrafast instruments could compete on a day-to-day basis with long-established, always-on mechanical micromanufacturing processes. (photonics.com)
The research includes: ultra-fast laser technology, ultra-fast and ultra-strong laser physics, and ultrafast sensitive detection. (usst.edu.cn)
The combs are generated in optical microresonators, tiny circular structures fed by continuous-wave light from a laser source. (techbriefs.com)
Attosecond science has largely remained within the confines of the laboratory in the last two decades, but technological advancements are under-way to develop high-repetition rate industrial-grade ultrafast and ultra-intense laser sources. (photonics.com)
A 3D rendering depicting ultrafast coherent x-ray light in the undulator component of an x-ray free-electron laser (XFEL) that was seeded by a laser wakefield-generated electron bunch. (photonics.com)
This exciting nonlinear photoionization study is carried out in collaboration with the attosecond laser group at the Lund Laser Center. (lu.se)

G.R.A. Priem, P. Bienstman, G. Morthier, R. Baets, Resonator-based all-optical phase shifting in pump-probe configuration , 2004 IEEE/LEOS Benelux Annual Symposium , Belgium, p.259-262 (2004). (ugent.be)
Here we investigate the complex interplay between Bloch band transport, non-linearity and dissipation, exploring how a synthetic dimension realized in the frequency space of a coherently driven optical resonator influences the dynamics of the system. (julienfatome.com)

As an important optical component in photonic systems, microlenses (MLs) have made it possible to build high-performance, miniaturized systems for a wide range of applications, such as imaging, sensing, and optical communication. (techbriefs.com)

Optical microscopy is one widely used tool to study morphological and functional characterization of the observed, typically fluorescent-labeled specimen. (unige.it)

Obtaining materials with stronger nonlinear properties is a crucial step towards applications that require lower powers and smaller footprints. (nature.com)
Degenerately doped semiconductors (such as tin-doped indium oxide and aluminium-doped zinc oxide) are particularly promising candidates for ENZ-enhanced nonlinear optical applications. (nature.com)
The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light. (wikipedia.org)
These promising results are a new step toward the implementation of functional oxides for nonlinear optical applications. (opticsjournal.net)
Applications of AM in the fabrication of single optical components (e.g. optical crystal) or systems (e.g. the making of an eagle eye) at the microscale or macroscale level have been the focus of recent developments. (techbriefs.com)
Today, optical distance measurement methods are being applied in a wide variety of emerging applications, such as navigation of autonomous objects, e.g. drones or satellites, or process control in smart factories. (techbriefs.com)
This approach is scalable and offers great promise for ultrafast arbitrary optical waveform generation and related applications. (julienfatome.com)
Organic conjugated molecules for optical and electronic applications have received great attention due to their versatility and relatively low manufacturing costs. (phys-acs.org)
In this regard, understanding the fast processes (fs) at a local level (nm) in these systems is crucial in the design criteria for better performance in optical and electronic applications. (phys-acs.org)
We have recently introduced silicon-rich silicon nitride as a promising nonlinear material and shown that it is a suitable candidate for applications involving the translation of optical signals across largely spaced wavelength bands. (southampton.ac.uk)
You will explore applications of nonlinear silicon nitride waveguides through the design of application-specific devices. (southampton.ac.uk)
The ARC Training Centre in Surface Engineering for Advanced Materials (SEAM) provides nano-textured surfaces for optical, sensor and bio-biomedical applications. (edu.au)

Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. (inl.int)
Based on this ZnO/MWNTs hybrid system, an ultrafast nonlinear optical switching behavior was demonstrated. (techconnect.org)

Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. (wikipedia.org)
In optical manufacturing, additive manufacturing (AM), as an advanced manufacturing method, has been gaining interest because of its capabilities in the fabrication of extremely complex shapes. (techbriefs.com)
Material and processing approaches to optical switch construction are not limited to the well known semiconductors and fabrication methods of electronics. (syr.edu)

We conclude by pointing towards possible future research directions, such as the search for ENZ materials with low optical losses and the elucidation of the mechanisms underlying nonlinear enhancements. (nature.com)
The Research Center for Optical Instrument and System Engineering of the Ministry of Education is equipped with public experimental platforms and equipment, including atomic force microscope, scanning electron microscope, corrosion electrochemical system, multi-function vacuum coating machine, magnetron sputtering machine, plasma-etching machine, E-beam evaporation system and so on. (usst.edu.cn)
At the Kuipers Lab, her research focuses on 2D materials and studying their optical properties, with a keen enthusiasm to expand her knowledge and creative insights in this field. (tudelft.nl)
Magnus T. Borgström is focusing on epitaxial growth, characterization and processing of nano scale building blocks for future applied related research, especially with focus on energy related issues. (lu.se)

In 2013, researchers demonstrated a resonant depletion modulator that can be fabricated using standard Silicon-on-Insulator Complementary Metal-Oxide-Semiconductor (SOI CMOS) manufacturing processes. (wikipedia.org)
On the receiver side, the optical signal is typically converted back to the electrical domain using a semiconductor photodetector. (wikipedia.org)
The circuits use the semiconductor-based ultrafast nonlinear interferometer (UNI) as the nonlinear switching element. (cti.gr)
InSe is a bandgap-tunable layered semiconductor material with nonlinear optical response over a wide wavelength range. (cookingmamacookoff.com)

Herein, we investigate the coherent vibrational wavepacket dynamics during the intersystem crossing processes in a bimetallic Pt( II ) complex. (rsc.org)

abstract = "The current major limiting factor in digital optical computing is the absence of a fast, efficient, cascadable optical switch. (syr.edu)

Ultrafast electronics with single-femtosecond or -attosecond optical gate signals could entirely waive the limitation when switching between electronic states," said Martin Schultze, professor of experimental physics at Graz University of Technology. (photonics.com)

Three-dimensional optical storage inside transparent materials. (nature.com)
Nonlinear Lithography [2] utilizes the nonlinear optical response of materials to achieve high-resolution 3D patterning beyond the diffraction limit. (forth.gr)
Although a wide range of materials can be used to build a component using SLM, its application in the manufacturing of metallic reflective optical components, such as mirrors, is more common. (techbriefs.com)
Nonetheless, most materials are known to exhibit weak optical nonlinearities, which would significantly increase the power consumption and the device footprint. (utwente.nl)
Although TCOs hold promise for high-speed data processing, there are still issues of power consumption and optical loss that need to be addressed before the practical implementation of devices based on these materials. (utwente.nl)
The aim of this thesis has been to improve the mentioned drawbacks by tailoring the important material parameters of TCOs in the ENZ spectral region and at the same time investigating alternative TCO materials with an improved optical response. (utwente.nl)
Furthermore, ITO films with higher crystal quality have larger high-frequency permittivity and smaller free-electron effective mass, which would improve the nonlinear refraction of these materials. (utwente.nl)
While there has been great improvement of light conversion efficiency in certain photovoltaic materials, there still remain questions concerning the structural and inhomogeneity of the electron and energy transport processes. (phys-acs.org)
The improved scheme of data recording process on an optical disc based on a substrate made of high-stable materials has been proposed. (spie.org)

MPS is utilized to manufacture a wide range of precision optical components, such as microlens arrays (MLAs}, waveguides, and photonic crystals. (techbriefs.com)

Many high-bandwidth analog communication systems require the processing of a large number of analog signals such as CATV distribution networks and antenna routing subsystems. (strath.ac.uk)
However, since the signals are multiplexed and demultiplexed in the electrical domain, the maximum number of channels is limited in such a system due to intermodulation distortion caused by nonlinearities in the electrical-optical-electrical conversion process. (strath.ac.uk)

The method is based on counter-propagating degenerate four‐photon interaction in birefringent optical fibres. (julienfatome.com)

In 2017, teams from KIT and EPFL published a joint article reporting on the potential of chip-scale soliton comb sources in optical telecommunications. (techbriefs.com)

The experiment relied on a soliton frequency comb generated in a chip-based optical microresonator made from silicon nitride. (techbriefs.com)
The concept relies on high-quality ultra-low loss silicon nitride microresonators in which extremely high optical intensities can be generated. (techbriefs.com)
The project is underpinned by the EPSRC-funded project Silicon-rich silicon nitride Nonlinear Integrated Photonic ciRcuits & Systems (juNIPeRS). (southampton.ac.uk)

However, the inverse process, the temporal compression of arbitrary light‐waves, has remained largely unexploited so far. (julienfatome.com)

We demonstrate an all-optical clock and data recovery circuit for short asynchronous data packets at 10-Gb/s line rate. (cti.gr)
The technique employs a Fabry P{\'e}rot filter and an ultrafast nonlinear interferometer (UNI) to generate the local packet clock, followed by a second UNI gate to act as decision element, performing a logical AND operation between the extracted clocks and the incoming data packets. (cti.gr)
We demonstrate the performance of this system by generating ultrafast replica of data packets with record temporal compression factors ranging from 4,350 to 13,000. (julienfatome.com)

Here we report on experimental observations of spontaneous symmetry breaking of dissipative optical solitons. (julienfatome.com)

We report, for the first time to the best of our knowledge, a detailed theoretical and experimental study about the third-order nonlinear susceptibility in crystalline YSZ. (opticsjournal.net)
Here, we present an experimental demonstration of extreme temporal compression of optical waveforms, including non‐trivial on‐demand time reversal. (julienfatome.com)
We identified a characteristic signature, that allows for an unequivocal experimental identification of this extremely weak process - the XPDC emission cone [1]. (aps.org)
These experimental results allow to create the sapphire optical discs for long-term data storage. (spie.org)
In his talk titled "Diffusion of optical phase singularities" he discussed his recent experimental work on the diffusive behaviour of phase singularities in random wave fields, through the use of a near-field microscope. (tudelft.nl)

In particular, the change in charge state during sequential dissociation processes of small molecules and dimers is monitored in real-time in three examples: Upon photo double ionization with synchrotron radiation (a) the electron transfer via spin-orbit coupling in water molecules and (b) the interatomic decay of transient states in NeKr dimers is followed on the potential energy landscape and timed. (aps.org)

The group has been at the forefront of optical fibre communications since the very earliest days of the field providing several critical contributions. (southampton.ac.uk)

Nonlinear all-optical technology is an ultimate route for next-generation ultrafast signal processing of optical communication systems. (opticsjournal.net)
It surveys major techniques of generating, detecting, and manipulating THz waves and also discusses a number of essential processes where THz waves interact with physical, chemical, and biological systems. (dmphotonics.com)
Dealing with the increase of digital optical data transmission rates requires innovative approaches for stretching or compressing optical waveforms beyond the bandwidth limitations inherent to conventional electro‐optical systems. (julienfatome.com)
Recently, Cu2ZnSnS4 (CZTS) has been recognized as good photocathode candidate in PEC systems for CO2 reduction due to its earth abundance and non-toxicity, as well as its favourable optical/electrical properties. (bvsalud.org)

However, the indispensable electro-optical switch (Pockels cell) still requires the large and complex dispersive delay lines for amplification to the multimillijoule level [3, 4, 5, 6]. (max-planck-innovation.de)
The absent electro-optical switch in the high-energy amplification process allows amplification without the need for CPA. (max-planck-innovation.de)
The amplification process starts with a seed oscillator (red). (max-planck-innovation.de)

Chapter 4 investigates the impact of the crystal quality of Indium-Tin Oxide (ITO) thin films on their material parameters and nonlinear refraction. (utwente.nl)
Due to this process, microstructure of the material is modified and usually the refractive index i. (lia.org)
The publication can be accessed (open access) through this direct link at the Advanced Optical Material journal web page. (in2sight.eu)

The results reveal a considerable decrease in the optical loss of ITO due to the increased free-electron optical mobility. (utwente.nl)
A newly developed ultrafast five-dimensional convergent beam electron diffraction method is introduced. (rsc.org)

Digital optical logic circuits capable of performing bit-wise signal processing are critical building blocks for the realization of future high-speed packet-switched networks. (cti.gr)
IZrO films feature a lower optical loss compared to ITO, which would lead to smaller signal attenuation in the ENZ spectral region. (utwente.nl)
According to these results, IZrO is a more promising candidate for all-optical signal processing. (utwente.nl)
Recently, we developed a quantitative theory [1,3] that linked the measured nonlinear scattering signal to an electronic current-density density correlation function. (aps.org)

In this thesis, I present a multimodal microscope that allows for simultaneous image acquisition from multiple optical imaging modalities, which we have constructed in Nanoscopy group at Center for Human Technology (CHT) of Istituto Italiano di Tecnologia (CHT), Genoa. (unige.it)

Nano-plasmonics, nano-optical trapping. (inl.int)
The International Conference on Advanced Plasmonics, Magnetics, and Magneto-optical Technologies (ICAPMOT)-2022 is focusing on Various Advanced Topics in Science, Engineering and Technologies. (seed-nanotech.com)

This could be solved with the development of a turnkey source that delivers single-cycle optical waveforms with microjoules of energy at a high repetition rate. (photonics.com)

Because switching in a logic transistor only goes one way, switching it on requires it to return to its nonconductive state through energy dissipation before it can process further information. (photonics.com)

The TOPO is a continuous wave optical parametric oscillator (OPO). (rp-photonics.com)

In this paper, we present recent advances in all-optical processing circuits and examine the potential of their integration into a system environment. (cti.gr)

Diseases1

Analytical, Diagnostic and Therapeutic Techniques and Equipment5

Phenomena and Processes9

Disciplines and Occupations2

Technology, Industry, Agriculture1

Information Science2

Spectroscopy18

Optics19

Photonics9

Pulses10

Phenomena7

Interactions5

Quantum8

Development of ultrafast1

Lasers13

Functionalities1

Highly-nonlinear materials1

Absorption8

Pulse7

Wavelengths4

20162

Propagation2

Photons3

Measurements3

Modulation6

Kerr1

Picosecond1

Frequency combs3

Terahertz1

Resonators1

Laser17

Resonator2

Photonic systems1

Microscopy1

Applications12

Behavior2

Fabrication3

Research4

Semiconductor4

Coherent1

Abstract1

Physics1

Materials9

Waveguides1

Signals2

Degenerate1

Telecommunications1

Silicon3

Light1

Data packets3

Dissipative1

Experimental5

Molecules1

Fibre1

Systems4

Amplification3

Material3

Electron2

Signal4

Nanoscopy1

Plasmonics2

Repetition1

Energy-dissipation1

Parametric1

Circuits1