Tunable dye laser. Medical search. Frequent questions

Fully automated and broadly tunable IR laser source, specifically designed for the integration with Scattering SNOM and AFM-IR microscopes. (photonicsolutions.co.uk)
When used in a laser cavity, these can be used to fabricate broadly tunable lasers, and several dyes exist that together can span the entire visible spectrum ," Kéna-Cohen, who was not involved with the new study, told Live Science. (livescience.com)
The broadly tunable laser emits two circularly polarized beams that are directed at different angles, due to a persistent spin helix on the surface of the laser's microcavity. (photonics.com)

The HarmoniXX series of frequency converters for ultrafast lasers are ideal for Ti:Sa lasers, oscillators, and OPOs, covering Second, Third and Fourth Harmonic Generation to reach across the visible and NIR ranges, and deep into the UV (down to ~190nm). (photonicsolutions.co.uk)
OPOs were actually invented in advance of the dye laser, in 1965, by Giordmaine and Miller of Bell Laboratories (2). (spectroscopyonline.com)
Now, however, thanks to advances in fibre laser pump sources, CW optical parametric oscillators (OPOs) that provide multiwatt output with wavelength coverage from the near- to mid-infrared (see figure 1) are on the market. (optics.org)
The availability of fibre laser pumped CW OPOs, which are comparable with dye or Ti:sapphire lasers in their capability for single-frequency operation, high-power level and broad tunability, is opening up new areas of scientific research and extending the possibilities for existing applications. (optics.org)
Although CW OPOs were first demonstrated in the 1960s, it was the development of quasi-phase-matched nonlinear materials (such as periodically poled lithium niobate [PPLN]) in the 1990s that led to practical configurations based on compact diode-pumped laser sources. (optics.org)
Today, the output power from commercially available CW OPOs has increased by more than an order of magnitude thanks to the emergence of fibre lasers and amplifiers. (optics.org)

The APE PulseSelect is the tool of choice for pulse picking from trains of pulses from ultrafast laser systems. (photonicsolutions.co.uk)
High power version of the hugely popular Levante Emerald ps OPO, offering up to 6W of tunable ps pulses in the NIR/IR range. (photonicsolutions.co.uk)
The horizontally polarized laser emission is repeatable and can be triggered by single pulses of a pump laser, the researchers said. (photonics.com)
Currently, the tunable laser works in pulses, because the organic dye slowly photodegrades when exposed to intense light. (photonics.com)
It is a method of using the timing of a pulsed excitation source, like a laser or LED, with the timing of the arrival of single photons on a detector to reconstruct the lifetime decay over many events (repetition of pulses and photons detected). (horiba.com)
When high energy Nd:YAG laser pulses entered the coumarin dye, out poured frequency tunable UV light, which we could use for our experiments. (pre-r.com)

The lasers commonly employed in optical microscopy are high-intensity monochromatic light sources, which are useful as tools for a variety of techniques including optical trapping, lifetime imaging studies, photobleaching recovery, and total internal reflection fluorescence. (fsu.edu)
In addition, lasers are also the most common light source for scanning confocal fluorescence microscopy, and have been utilized, although less frequently, in conventional widefield fluorescence investigations. (fsu.edu)
Illustrated in Figure 1 is a self mode-locked Ti:sapphire pulsed laser, which is currently one of the preferred laser excitation sources in a majority of multiphoton fluorescence microscopy investigations. (fsu.edu)
Fluorescence excitation spectra for pentacene in p-terphenyl at 1.5 K measured with a tunable dye laser of line width ∼3 MHz. (everydayscientist.com)
Tunable narrowband light sources are essential for measuring fluorescence, reaction energetics, and other challenging measurements in chemical, biological, and physical systems. (spectroscopyonline.com)
Chen, R. F. and C. H. Scott (1985) Atlas of fluorescence spectra and lifetimes of dyes attached to protein. (photochemcad.com)

They also demonstrated that they could use two different dyes to produce laser emissions ranging in color from yellow to deep red. (livescience.com)
By tuning the wavelength of a dye laser, Moerner and others were able to excite different dyes at different times, all within one diffraction-limited laser spot. (everydayscientist.com)

In addition, because wavelengths corresponding to absorption peaks for various skin chromophores are known, absorption of laser energy can be localized without damaging neighboring structures. (medscape.com)
In conventional lasers, the optical cavity determines the main characteristics of the laser emission: its geometry fixes the emission wavelengths and the lasing modes, as well as the direction of the laser emission. (nature.com)
Conventional CARS requires that the operator continually stop the experiment to adjust the angles of the lasers as they are tuned to new wavelengths. (laserfocusworld.com)
Organic lasers hold great promise because they are low-cost and can emit light in a wide range of wavelengths, but they are limited because the dyes degrade rapidly. (livescience.com)
Tunable lasers have the capability to switch between wavelengths in just nanoseconds. (precisionot.com)

By actively shaping the optical pump within the random laser, single-mode operation at any selected wavelength is achieved with spectral selectivity down to 0.06 nm and more than 10 dB side-lobe rejection. (nature.com)
In this Letter, we achieve experimental control of the random laser spectral emission by optimization of the optical pump profile. (nature.com)
Use the PulseSlicer to cut out a very narrow spectral part of an ultra-short laser pulse, and therefore broaden the pulse in the temporal regime (e.g. from ~140fs to ~2.7ps). (photonicsolutions.co.uk)
By comparison, dye lasers have a very narrow scan range, a characteristic that results in an incomplete spectral picture. (laserfocusworld.com)
Physical, spectral and laser properties of anew Yb 3+ doped phosphate laser glass, QX/Yb, has been developed. (spie.org)
dyes in different parts of the solid experience slightly different nano environments, and their spectral properties are different. (everydayscientist.com)
New laser spectrometer T&D-scan for research that demands high resolution and high spectral density in UV-VIS-NIR spectral domains - now available with new pump option ! (dmphotonics.com)
Novel advanced design of the fundamental laser component implements efficient intra-cavity frequency doubling as well as provides a state-of-the-art combined ultra-wide-tunable Ti:Sapphire & Dye laser capable of covering together a super-broad spectral range between 275 and 1100 nm. (dmphotonics.com)
He continued research and development on Fabry-Perot devices and their applications, and introduced a particularly novel, narrow-gap, hence exceedingly broad free-spectral range device, which was later used to tune short-pulse, broad-band lasers and was successfully commercialised. (dib.ie)
Fibre lasers provide the spectral and spatial characteristics needed to be an effective pump for a CW OPO, while also being rugged, alignment-free laser sources. (optics.org)

Fields within organic photonics include the liquid organic dye laser and solid-state organic dye lasers. (wikipedia.org)
Materials used in solid-state dye lasers include: laser dye-doped PMMA laser dye-doped ormosil laser dye-doped polymer-nanoparticle matrices laser dye-doped bio-based gain media Organic-inorganic nanoparticle gain media are nanocomposites developed for solid-state dye lasers and can also be utilized in biosensors, bio analytics, and nonlinear organic photonics applications. (wikipedia.org)
An additional class of organic materials used in the generation of laser light include organic semiconductors. (wikipedia.org)
Conjugated polymers Nonlinear optics Organic laser Organic semiconductor Polymer Nanoparticle Photonics Soffer, B. H. (wikipedia.org)
Organic Lasers and Organic Photonics. (wikipedia.org)
Typically, the gain medium is made from inorganic materials such as glasses, crystals or gallium-based semiconductors, but in recent years, researchers have investigated using organic carbon-based dyes instead. (livescience.com)
Now, researchers from France and Hungary have used inkjet printers to produce the organic laser chips at the heart of these devices for mere cents, making it cost-effective to regularly replace the degraded parts. (livescience.com)
I think that this is an exciting piece of work with great potential for applications," said organic laser expert Graham Turnbull, a professor in the School of Physics and Astronomy at the University of St Andrews in Scotland. (livescience.com)
The most popular method for creating organic laser chips in the past has been spin coating. (livescience.com)
Inkjet printed "lasing capsules" serve as the core of an organic laser. (livescience.com)
HORIBA are able to offer analysis, control and evaluation solutions to support the Organic Dye-sensitized production process. (horiba.com)
The researchers filled the integrated photonic microcavity of the laser with a liquid crystal with high birefringence, and embedded a high-efficiency, organic semiconductor dye in the liquid crystal. (photonics.com)
It was the development of the organic dye laser in 1966 that provided revolutionary access to narrowband light in the visible and near-infrared. (spectroscopyonline.com)
Zollinger, H. (1987) Color Chemistry: Syntheses, Properties, and Applications of Organic Dyes and Pigments. (photochemcad.com)

Early laser technology used continuous-wave (CW) mode lasers for treating cutaneous vascular lesions. (medscape.com)
Progress in quantum cascade emitters and in nonlinear frequency conversion of solid-state lasers has brought continuous-wave (CW) sources operating between 2 and 10 µm to the point of commercial availability. (optics.org)

Del Mar Photonics offer a handheld infrared spectrometer based on the acousto-optic tunable filter (AOTF) . (dmphotonics.com)
Del Mar Photonics offers compact pulse Nd:YAG lasers with excellent beam quality, high energy/efficiency and possibility of efficient PRR changes with no significant degradation of the output beam parameters. (dmphotonics.com)
No matter how you may wish to use it as a stand alone laser or as a pump source for tunable lasers and OPO the Del Mar Photonics LQ529 laser provides a combination of high operation parameters, reliability and reasonable price which could not be achieved earlier. (dmphotonics.com)

Laser treatment of cutaneous vascular lesions has progressed significantly over the past 30 years. (medscape.com)
Laser treatment has been described in nodular localized cutaneous amyloidosis. (medscape.com)
One of the most widely used cutaneous applications of Light Amplification by Stimulated Emission of Radiation (laser) concerns the treatment of vascular lesions. (jsurgdermatol.com)
Apfelberg DB, Maser MR, Lash H, Rivers J. The argon laser for cutaneous lesions. (jsurgdermatol.com)
Lasers for cutaneous congenital vascular lesions: A com-prehensive overview and update. (jsurgdermatol.com)

The easy-to-use and truly hands-free tunable picosecond light source. (photonicsolutions.co.uk)

Duarte does a good job of defending the many contributions and the unique attributes of dye lasers, including the available high pulse energy, femtosecond, and narrow line width, among several. (spectroscopyonline.com)
Trestles LH is a new series of high quality femtosecond Ti:Sapphire lasers for applications in scientific research, biological imaging, life sciences and precision material processing. (dmphotonics.com)
Reserve a spot in our Femtosecond lasers training workshop in San Diego, California. (dmphotonics.com)

Dawn G, Urcelay M, Patel M, Strong AM. Keratosis rubra pilaris responding to potassium titanyl phosphate laser. (jamanetwork.com)

Coherent laser emission has been reported in various active random media, raising strong interest for this class of lasing sources, which are easy to fabricate and have demonstrated unique properties and promising applications 8 . (nature.com)
One well-known method that historically has been plagued by the complexities and limitations of dye-based tunable lasers is coherent anti-Stokes Raman spectroscopy (CARS). (laserfocusworld.com)
Lasers emit intense packets of monochromatic light that are coherent and highly collimated to form a tight beam with a very low rate of expansion. (fsu.edu)
When the researchers optically stimulated the dye embedded in the liquid crystal molecules, they obtained a lasing effect - a coherent light radiation with a strictly defined energy. (photonics.com)

The repetition of a laser or LED pulsed at relatively high repetition rate (10 kHz to 100 MHz) is synchronized with the time the next photon arrives at a detector (i.e. (horiba.com)
This laser has a pulse duration of 1.3 ns, a high-speed repetition rate of 50 600 kHz, and an averaged output power of 10 W at 600 kHz. (dmphotonics.com)
This constitutes a great advantage over lasers using expensive and difficult to align Gaussian optics and thus demanding realignment and sometimes even replacement of optical components in order to avoid dramatic worsening of their output parameters if pulse repetition rate (PRR) has been changed. (dmphotonics.com)

A more recent addition to spectroscopy laboratories is the external cavity diode laser (ECDL). (optics.org)

Beams of sufficiently high power can burn the skin, or in some cases create a hazard by burning or damaging other materials, but the primary concern with regard to the laser beam is potential damage to the eyes, which are the part of the body most sensitive to light. (microscopyu.com)
Pulsed lasers present a different hazard than those producing continuous beams. (microscopyu.com)
Lasers create their high-energy beams using a so-called gain medium, which takes advantage of the interactions between the electrons of its atoms and incoming photons to amplify light to high intensities. (livescience.com)
As a result, laser light beams can travel over long distances and can be expanded to fill apertures or focused to a very small spot with a high level of brightness. (fsu.edu)
Obtained tunable microlaser emitting two beams. (photonics.com)

Lasers have become integral components of many current optical microscopy techniques, and when combined with complex optical systems, they can constitute a significant hazard if safe procedures are not strictly followed. (microscopyu.com)
However, due to its highly specialised focus on nonlinear optics, APE is a sought-after OEM development partner and supplier for laser manufacturers, microscopy companies and other well-known technology giants. (photonicsolutions.co.uk)
The coherence of monochromatic light produced by most laser systems introduces problems in the application of these light sources for classical widefield microscopy. (fsu.edu)
The most common methods include temporally scrambling laser light by rapidly varying the optical path length between the light source and the microscope, or scanning the specimen point by point as is the case in confocal microscopy systems. (fsu.edu)

There are, however, situations where laser emission is not fully controlled by the optical cavity. (nature.com)
The high power available from a fibre laser also eliminates the need to resonate the pump wavelength in the cavity to achieve oscillation, which in turn leads to stable single-frequency operation without complex locking electronics. (optics.org)
In the Argos, a 15 W single-frequency fibre laser pumps the OPO in which the shorter "signal" wavelength is resonant and the longer "idler" wavelength exits the cavity on a single pass. (optics.org)
Each time the beam passes through the cavity, depolarized lasing is filtered by various polarization units and is dropped out of the cavity that leads to decrease in laser operation efficiency. (dmphotonics.com)
Optical design of the LQ529 laser cavity allows to practically eliminate energy losses caused by depolarization and provides laser energy output with more than 2% wall-plug efficiency of a laser system (total electrical-to-optical power efficiency). (dmphotonics.com)

Chan, M. S. and J. R. Bolton (1980) Structures, reduction potentials and absorption maxima of synthetic dyes of interest in photochemical solar-energy storage studies. (photochemcad.com)

Pulsed laser systems, such as the 585- or 595-nm pulsed dye laser (PDL), subsequently were developed and have become the mainstays of therapy for both congenital and acquired vascular lesions. (medscape.com)
20 cm 2 ) respond better to laser treatment compared with lesions localized on the trunk or extremities or larger lesions. (medscape.com)
and neodymium-doped yttrium-aluminium-garnet laser, or Nd:YAG), as well as the combination of laser and photodynamic therapy (PDT) for the treatment of vascular lesions. (jsurgdermatol.com)
The review of many recent research studies demonstrates that modern applications of lasers in dermatology constitute the finest method for the treatment of vascular lesions, combining the advantages of invasive therapy with the security offered by non-invasive therapy, while in certain cases they are the single and only choice for the treatment of these lesions. (jsurgdermatol.com)
Laser treatment of pediatric vascular lesions: Port wine stains and hemangiomas. (jsurgdermatol.com)
Landthaler M, Hohenleutner U. Laser therapy of vascular lesions. (jsurgdermatol.com)
Update on lasers and light devices for the treatment of vascular lesions. (jsurgdermatol.com)

In this process, the surface on which the dye solution is to be deposited is spun rapidly so that centrifugal force spreads the liquid evenly to form a uniform thin film. (livescience.com)
Introduction Tunable transceivers have rapidly progressed since their ancestors Dye Lasers were developed in the late 1960's. (precisionot.com)

Holmes, W. C. (1930) The absorption spectra of dyes. (photochemcad.com)

Barium Borate BBO Crystal Dien Laser Nonlinear bbo Crystals BBO is very good for tunable laser sources, such as ultrafast Ti:Sapphire or dye lasers. (chinalane.org)

They are now the world-leading manufacturer of optical parametric oscillators, frequency conversion units, ultrafast diagnostics, acousto-optics and wavelength measurement systems for the ultrafast laser industry. (photonicsolutions.co.uk)

One of the main reasons for moderate efficiency of conventional Q-switched lasers is birefringence induced in the Nd:YAG rod leading to depolarization of laser output. (dmphotonics.com)

abstract = "Objective: To determine whether the argon tunable dye laser, used in a noncutting, hemocoagulative mode, improves skin flap survival as effectively as a surgical delay procedure. (umn.edu)

Broadening his research on the applications of the Fabry-Perot, with the coming of the laser era he was quick to realise that, although suitable for diagnosis of continuous operating lasers, the scanning Fabry-Perot configurations he had developed were totally unsuitable for investigations of nanosecond Q-switched lasers and the laser-generated plasmas they produced. (dib.ie)
I have a nanosecond pulse laser at 532 nm. (dmphotonics.com)

died 18 Jul 1997 at age 69 . (todayinsci.com)

A successful technique employed by some investigators to improve differential interference contrast ( DIC ) images produced with an argon ion laser light source is to position a circular glass wedge, spinning at 2500 revolutions per minute, in the light path. (fsu.edu)

This approach may be used in single-frequency lasers of different types (solid-state, fiber, diode, dye lasers, etc.) and allows reduction by an order of magnitude or more of the long-term generation line drift in lasers that are not equipped with other systems for long-term stabilization of output radiation frequency. (optica.org)

As a result, users of dye-laser-based CARS systems are compelled to paste together pieces of spectra to cover a full vibrational spectrum, a process that is both inconvenient and time-consuming. (laserfocusworld.com)

The wavelength of the laser radiation is significant because only light within the wavelength range of approximately 400 to 1400 nanometers can penetrate the eye sufficiently to damage the retina. (microscopyu.com)

Research results combined with an accumulated understanding of the hazards of sunlight and other light sources have led to the establishment of estimated nominal safe exposure limits for most types of laser radiation. (microscopyu.com)
INTERNATIONAL PROGRAMME ON CHEMICAL SAFETY ENVIRONMENT HEALTH CRITERIA 23 LASERS AND OPTICAL RADIATION This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organisation, or the World Health Organization. (inchem.org)
For the first time to our knowledge we experimentally demonstrate an efficient method for the reduction of long-term radiation line drift in single-frequency cw Ti:sapphire and dye lasers that relies on a fast and precise wavelengthmeter together with a digital-analog feedback system. (optica.org)

The first proposal for laser optimization based on non-uniform pumping can be traced back to the seminal paper by Kogelnik and Shank 16 , where it was suggested in the conclusion that, instead of applying a spatial modulation to the index of refraction, the pump intensity could be spatially modulated to vary the gain periodically and realize a distributed feedback (DFB) laser. (nature.com)
With up to 10 Watts CW average power at 532nm in a TEMoo spatial mode, LH series lasers has quickly proven itself as the perfect DPSS pump laser for all types of Ti:Sapphire or dye laser. (dmphotonics.com)

Laser emission is similar to direct sunlight exposure in that the light arrives at the eye in parallel rays, which are very efficiently focused on the retina, the rear surface of the eye that senses light. (microscopyu.com)
Potential hazards to the eye depend on laser light wavelength, beam intensity, distance from the laser, and power of the laser (both average power over long intervals and peak power produced in a pulse). (microscopyu.com)
With such a configuration, about 5.4 W pump light is launched into the first-cladding and 2.8 W laser output is obtained. (spie.org)
The lasers could have future applications as disposable light sources for chemical analysis such as medical screening or pollution monitoring," Turnbull, who was not involved in the new study, told Live Science. (livescience.com)
Another laser, known as the pump, was used to provide the light energy input, the researchers said. (livescience.com)
Compared to other light sources, the extremely pure wavelength ranges emitted by the laser have a bandwidth and phase relationship that is unparalleled by tungsten-halogen or arc-discharge lamps. (fsu.edu)
The light produced by many laser systems is linearly polarized, with a polarization vector oriented vertically. (fsu.edu)
The coherence and polarization characteristics of a laser beam are measured by the distribution of light in the beam cross-section, or profile, which changes with increasing distance from the exit mirror of the laser. (fsu.edu)
The light in the laser microcavity interacted with the liquid crystal molecules differently, based on whether the electric field of the propagating wave oscillated along the molecules or perpendicular to them. (photonics.com)
Nd 3+ laser to tunable light over the range of 970-1150 nm by vary- ing the temperature of the oscillator crystal. (spectroscopyonline.com)
Usually, light-directed AuNP assembly methods use higher laser powers and surfactants and are, hence, unsuitable for biological applications. (bvsalud.org)

while research continued, development of the OPO into a practical device would depend strongly on the availability of very high quality crystals and appropriate laser sources and coatings that were not available until the late 1980s and 1990s. (spectroscopyonline.com)

died 14 Jan 1978 at age 71 . (todayinsci.com)

The lines of research she has worked on were related to laser technologies, developed from an experimental perspective in different optics labs. (researchgate.net)
Will Tunable Optics Benefit My Network? (precisionot.com)
Tunable lasers are high-speed, high-performing optics. (precisionot.com)
Laser Blade optics have evolved through the adoption of Opti Diamond technology , the outcome of a detailed study into materials, engineering and processes that optimise the catadioptric principle, with the result of extraordinary brilliance just like a diamond. (iguzzini.com)

These lasers offer excellent clinical improvement with a low risk of adverse sequelae. (medscape.com)
A patient treated with a tunable dye laser had a good result, and clinical improvement was maintained over 6 months. (medscape.com)

The HarmoniXX Difference Frequency Generation (DFG) Unit is designed to extend any suitable NIR ultrafast laser source up into the mid infrared range (up to ~20um). (photonicsolutions.co.uk)
Angus Henderson of Aculight discusses the technical advances that have resulted in a tunable source with a narrow linewidth. (optics.org)
When the Ti:sapphire laser arrived in 1988 with its relative ease of use and increased reliability, this all-solid-state source soon became a spectroscopic workhorse. (optics.org)

Up to 65 mJ of output was obtained in this high-quality crystal, the highest ever reported in Q-switched mode with this laser material. (spie.org)
To ensure proper cooling and humidity control of the laser crystal, nitrogen gas is pumped into the sealed laser head, which is maintained at constant temperature by an external chiller. (fsu.edu)
The researchers introduced optical gain into this system by dispersing a molecular dye in a liquid crystal microcavity and demonstrated an optically persistent spin helix lasing in the Rashba-Dresselhaus regime. (photonics.com)

Solid-state tunable lasers based on dye-doped sol-gel materials. (wikipedia.org)
Early solid state and gas lasers emitted one or more narrowband lines, which had some limited spectroscopic usefulness. (spectroscopyonline.com)

When lasers first began appearing in laboratories, both the devices and their applications were so specialized that safe laser operation was a problem faced by a very limited group of researchers and engineers, and was not a subject of general interest. (microscopyu.com)
The following discussion of laser beam characteristics is presented as a general overview of the subject that may prove useful in employing lasers in microscope imaging, laser trapping, and other applications. (fsu.edu)
DPSS LH is a state-of-the-art laser designed for today s applications. (dmphotonics.com)
Dye lasers were the first CW sources to be widely used in spectroscopic applications back in the 1960s providing watt-level CW output in the visible and near-infrared. (optics.org)

To limit damage to surrounding structures, pulse duration must be less than or equal to the targeted thermal relaxation time of the chromophore, ie, the time necessary for the target to cool by half of its peak temperature after laser irradiation. (medscape.com)

In the past, however, CARS has been hindered by phase-matching problems and the short scan range of dye lasers. (laserfocusworld.com)
The OPO used in this new interference-free CARS ap proach increases the wavelength scan range, while eliminating the traditional complexities of dye-laser operation and maintenance. (laserfocusworld.com)
Ti:sapphire mode-locked lasers provide a large wavelength tuning range, from about 690 to over 1050 nanometers, with pulse widths approximately 100 femtoseconds in length. (fsu.edu)
In addition, these lasers have sufficient power (greater than 100 milliwatts throughout the tuning range) for saturation of two-photon excitation in most fluorophores. (fsu.edu)
A microlaser that is tunable in the range of 40 nm has been developed by researchers at the University of Warsaw, the Military University of Technology in Warsaw, and the University of Southampton. (photonics.com)
Tunable transceivers have a wide tuning range. (precisionot.com)

that is, the laser emitted one linearly polarized beam perpendicular to the surface of the mirrors. (photonics.com)

Single rod and single flash lamp design is the determining factor for reduction of the laser price and maintenance costs. (dmphotonics.com)

If the path length or coherence state of the laser beam fluctuates at a faster interval than the detector integration time (in effect, the video frame rate), the speckle and scattering artifacts disappear from the image. (fsu.edu)
Integration techniques of tunable film dye lasers on a plastic optical application chip were studied. (elsevierpure.com)

We show experimentally that control over laser emission can be regained even in this extreme case. (nature.com)
Recently, emission control was demonstrated in a particular micro-random laser where modes could be selected independently: the random laser was pumped uniformly below threshold and the pump was shaped into a directive wedged channel to externally feed the random laser in a particular direction 19 . (nature.com)

The developed system and method can detect sulforhodamine 101 (SR101) dye molecules at concentrations as low as 10-10 m. (bvsalud.org)

aser spectroscopy en compasses many techniques, each with notable advantages and disadvantages. (laserfocusworld.com)

Based on the pioneering work of Anderson and Parrish in the early 1980s, several vascular-specific laser systems have been developed using principles of selective photothermolysis. (medscape.com)
Tunable transceivers have become prominently used in DWDM transmission systems due to their multi-faceted abilities and ease of spare use. (precisionot.com)
Tunable DFB (Distributive Feedback) laser arrays are adjustable and work well with 100G systems by reducing line-width. (precisionot.com)

All laser products sold in the USA since 1976 are required to be certified by the manufacturer as meeting specified product safety standards for their designated classification, and they must be labeled as to their class. (microscopyu.com)

The various aspects of erbium glass laser characteristics were carefully examined, including the influences of pumping pulsewidth, dopant concentration, output wavelength, relaxation oscillation and energy transfer processing between Yb 3+ and Er 3+ . (spie.org)

These lasers did not restrict damage to the targeted vascular structures, and, consequently, their use resulted in a high prevalence of scarring. (medscape.com)
The two major concerns in safe laser operation are exposure to the beam and the electrical hazards associated with high voltages within the laser and its power supply. (microscopyu.com)
While there are no known cases of a laser beam contributing to a person's death, there have been several instances of deaths attributable to contact with high voltage laser-related components. (microscopyu.com)
The qualification of the thin disc laser concept for obtaining output powers in the multi-hundred watt class with good beam quality and high efficiency simultaneously is presented.The output power is scalable by increasing the pumped area at constant pump power density. (spie.org)
When partnered with ROADM (re-configurable optical add-drop multiplexers), tunable transceivers become a powerful and invaluable high-speed transmission tool. (precisionot.com)
The T&D-scan includes a CW ultra-wide-tunable narrow-line laser, high-precision wavelength meter, an electronic control unit driven through USB interface as well as a software package. (dmphotonics.com)

Diseases5

Chemicals and Drugs2

Analytical, Diagnostic and Therapeutic Techniques and Equipment9

Broadly tunable3

OPOs6

Pulses6

Fluorescence6

Different dyes2

Wavelengths5

Spectral10

Organic14

Continuous-wave2

Photonics3

Cutaneous5

Picosecond1

Femtosecond3

Potassium titanyl phospha1

Coherent4

Repetition rate3

Diode Laser1

Beams5

Microscopy4

Cavity5

19801

Lesions7

Rapidly2

Absorption1

Nonlinear1

Oscillators1

Birefringence1

Abstract1

Nanosecond2

19971

Argon ion l1

Order of magnit1

Spectra1

Wavelength range1

Radiation3

Spatial2

Light11

Crystals1

19781

Optics4

Clinical improvement2

Source3

Crystal3

Solid-state2

Applications4

Temperature1

Range6

Linearly polarized1

Reduction1

Integration2

Emission2

Molecules1

SPECTROSCOPY1

Systems3

Classification1

Characteristics1

High6