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  • sensors
  • Consisting of 14 chapters, it describes a variety of spaceborne optical sensors and their performance measurements. (spie.org)
  • Early optical remote sensing systems relied on multispectral sensors, which are characterized by a small number of wide spectral bands. (springer.com)
  • Although multispectral sensors are still employed by analysts, in recent years, the remote sensing community has seen a steady shift to hyperspectral sensors, which are characterized by hundreds of fine resolution co-registered spectral bands, as the dominant optical sensing technology. (springer.com)
  • holographic optical
  • A holographic optical article of manufacture and a process for making it made from a polymeric material in the form of film which is transparent in the infrared region and which is photochemically modified to change its index of refraction. (google.com)
  • 2. A method of making holographic optical devices by changing the index of refraction in selected portions of polymer material as described in claim 1 where the noncross linked polymer material is selected from the group consisting of polyethelene, polypropylene, and mixtures thereof. (google.com)
  • 3. A method of making holographic optical devices by changing the index of refraction in selected portions of polymer materials as described in claim 1 further comprising the step of wetting said metal grating with nonane prior to putting said grating between said polymer material and said upper quartz sheet to provide better optical contact with said polymer material. (google.com)
  • 5. A method of making holographic optical devices by changing the index of refraction in selected portions of polymer materials as described in claim 1 except said exposure step has said polymer exposed while immersed in acetyl iodide instead of air. (google.com)
  • Holographic optical elements can overcome these limitations by correcting aberrations even from aerodynamically improved irdomes. (google.com)
  • Holographic optical elements, HOE's, can be used for many purposes including correcting elements behind missile domes, lenses, and gratings. (google.com)
  • fiber
  • For optical communications applications, the device has additional attractive properties, such as being able to couple efficiently to optical fiber and being insensitive to the polarization of incoming signals. (photonics.com)
  • The thinking behind using a supercontinuum in an optical system is the same whether the fiber is a HNLF or a HNL-PCF, but the extra possibilities given by the freedom of design of the PCF technology appeals to using a HNL-PCF for a WDM source. (dtu.dk)
  • By testing a HNL-PCF as a medium for supercontinuum generation at various dispersion values and at the same time using that supercontinuum in an optical system showed the importance of the fiber design. (dtu.dk)
  • It is believed that by satisfying strict demands on the pulse sources and the fiber design, could the use of a supercontinuum in a commercial optical system become a possibility in the near future. (dtu.dk)
  • Contrast phase imaging at infrared wavelengths is achieved through an extrinsic Fabry-Perot cavity in optical fiber. (edu.pl)
  • Wavelength conversion at 80 Gb/s using a 1-km-long fiber with γ = 11 W−1/km and a 1.5-nm-bandwidth tunable optical filter. (studyres.com)
  • wherein
  • 2. An optical processing method according to claim 1 wherein said laser light is selected from the group consisting of KrF excimer laser light, ArF excimer laser light and XeCl excimer laser light. (patentgenius.com)
  • 3. An optical processing method according to claim 1 wherein said irradiating step is performed by relatively scanning said laser light with respect to said substrate. (patentgenius.com)
  • the cluster processing engine is further operable to generate each cluster image including applying gray scale or color information in the original image in the document, wherein the gray scale or color information comprises pixel values in which each pixel value can assume more than two values. (google.co.uk)
  • an output processing engine operable to produce a modified OCR output from the received OCR output, wherein the output processing engine, in producing the modified OCR output, assigns one or more OCR character codes for each cluster processed by the cluster processing engine to each clip image belonging to the cluster. (google.co.uk)
  • 6. The method of claim 5 wherein the admitted blood is present in an amount in the bowl and further comprising the step of monitoring the amount with an optical sensor and wherein the admitting of blood ceases when the amount reaches a predetermined value. (google.ca)
  • A liquid crystal optical device comprising a pair of substrates provided with electrodes and a layer containing a liquid crystal material sandwiched between the pair of substrates, wherein said layer is formed by irradiating light to a solution of a nematic liquid crystal material and a photo-curable. (google.es)
  • 2. The liquid crystal optical device according to claim 1, wherein the photo-curable vinyl compound is selected so that the refractive index of the resulting cured product agrees to the ordinary refractive index (n 0 ) or the extraordinary refractive index (n e ) of the nematic liquid crystal material used. (google.es)
  • 4. The liquid crystal optical device according to claim 1, wherein the layer containing a liquid crystal material contains a spacer to secure a cell gap. (google.es)
  • 5. The liquid crystal optical device according to claim 1, wherein the substrates provided with electrodes are substrates provided with transparent electrodes. (google.es)
  • 7. The liquid crystal optical device according to claim 6, wherein a protective sheet is laminated on the outer side of at least one of the plastic substrates. (google.es)
  • 8. The liquid crystal optical device according to claim 6, wherein a protective sheet is laminated on the outer side of each of the plastic substrates. (google.es)
  • 9. The liquid crystal optical device according to claim 8, wherein the protective sheet is a glass sheet. (google.es)
  • 10. The liquid crystal optical device according to claim 9 wherein the glass sheet is bonded by polyvinyl butyral to each plastic substrate integrally in the form of a laminated glass. (google.es)
  • 14. The process according to claim 11, wherein the solution of the nematic liquid crystal material and the photo-curable vinyl compound is supplied onto one of the substrates provided with electrodes, and then, the other substrate is overlaid thereon, followed by the irradiation with light to cure the photo-curable vinyl compound. (google.es)
  • 15. The process according to claim 14, wherein a spacer to secure a cell gap is introduced together with the solution, or before or after the supply of the solution onto one of the substrates and prior to the overlaying of the other substrate. (google.es)
  • laser induced
  • According to embodiments of the present invention, pulse shaping of the conditioning pulse enables laser conditioning of optical elements to achieve improvements in their laser induced damage threshold. (energy.gov)
  • The technique was used to image microcirculation at the capillary level, 2 brain micro-vascular morphology and oxygenation, 3 amyloid plaques in Alzheimer's disease mouse models, 4 ocular micro-vascularture, 5 and healing processes of laser-induced lesions in small animal models. (spiedigitallibrary.org)
  • relates
  • An important source of pollution derived from modern combustion processes relates to the release of particulate matter (PM) to the atmosphere, a combustion by-product [ 4 , 5 ]. (mdpi.com)
  • The present invention relates to a liquid crystal optical device of light transmission and scattering type, a process for its production and a method for its operation. (google.es)
  • publication
  • This is the second in an annual series of related special issues, initiated with the publication of "Spatial Light Modulators: Critical Issues" (Optical Engineering, Vol. 22, No. 6, November/ December 1983). (spiedigitallibrary.org)
  • This cutting-edge publication includes a collection of images and graphics, processing technologies and parallel implementations with up-to-date references at the end of each chapter. (springer.com)
  • refractive index
  • The measurement of the reflected optical intensity provides a map of the sample reflectivity, whereas from the analysis of the spectrum in the time/spatial domain, it is possible to extract topography and refractive index variations. (edu.pl)
  • system
  • In this paper, we propose a hybrid optical and mechanical-scanning OR-PAM system with mosaic data acquisition and processing. (spiedigitallibrary.org)
  • Optalysys Ltd., a start-up commercialising light-speed optical co-processors for AI/deep learning, and world-leading genomic research institute The Earlham Institute, EI, have announced the successful completion of the Genetic Search System (GENESYS) project. (primeurmagazine.com)
  • The optical system exceeded the original targets delivering a 90 percent energy efficiency saving compared to the same test run on EI's HPC cluster, with an accuracy comparable to the highly sensitive nucleotide form of BLAST, BLASTn - part of a family of Basic Local Alignment Search Tools used to compare query sequences with a library or database of sequences. (primeurmagazine.com)
  • The investigation has been done with respect to the future of telecommunications in an all-optical system. (dtu.dk)
  • The modulation format is also dependent on transmission in the optical system and dependent on the pulse source used to generate the supercontinuum. (dtu.dk)
  • data
  • Data from a sequence of image mosaic patches is acquired systematically, at predetermined mechanical scanning locations, with optical scanning. (spiedigitallibrary.org)
  • Genomic institutes are being faced with analysing more and more data, and it is really exciting that new technologies like the Optalysys optical processing platform can support bioinformaticians processing data accurately, at a low cost and at high speeds", stated Dr. Daniel Mapleson, analysis pipelines project leader at EI who was the EI lead for the genomics tests during the project. (primeurmagazine.com)
  • Optical remote sensing involves acquisition and analysis of optical data - electromagnetic radiation captured by the sensing modality after reflecting off an area of interest on ground. (springer.com)
  • This book is composed of contributions that address many of the contemporary problems faced when processing hyperspectral image data. (springer.com)
  • spatial
  • Spontaneous and sensory-evoked activity in populations of cerebellar neurons in anesthetized and alert mice will be recorded using an optical technique that detects neural activity with excellent spatial and temporal resolution. (autismspeaks.org)
  • elements
  • The infrared seeking missiles currently in use utilize irdomes of germanium and optical elements to correct aberrations introduced by the irdome. (google.com)
  • HOE's in the visible are used for gratings and other optical elements. (google.com)
  • measurement
  • We can measure the scattering parameters of optical devices with fast two-way measurement when applying the new probes in conventional network analyzers. (spie.org)
  • novel
  • Jon Mitchener, innovation lead for emerging technologies, Innovate UK, stated: "GENESYS is a project that not only exemplifies the R&D done - combining novel optical HPC and deep learning AI techniques with a really important health-screening application, but also the way that support from Innovate UK can help accelerate the move from a prototype towards commercial product launch for a high-potential British SME like Optalysys. (primeurmagazine.com)
  • systems
  • The use of HNL-PCF in optical communication systems has been investigated in this thesis. (dtu.dk)
  • techniques
  • The effects of the host material on the optical transmission of the NLO material is investigated using numerical laser beam propagation modeling (LBPM) techniques. (spie.org)
  • methods
  • Consequently, because of increasing public awareness about negative environmental effects and the rise of more strict regulations regarding GHG emissions, there is an imperative need for developing more effective diagnostic and control methods for improving the efficiency of industrial combustion processes. (mdpi.com)
  • method
  • The method also includes determining a first time associated with an onset of electronic excitation leading to formation of an absorbing region of the optical element and determining a second time associated with expansion of the absorbing region of the optical element. (energy.gov)
  • We show that the DW method probes the Winger time-frequency distribution (TFD) with two orthogonal windows set by the standard deviation of the Gaussian windows used for processing. (spie.org)
  • Devices
  • SOA-based optical processing devices can require much less power (~1 W) than the electronic equivalent (approximately tens of watts) and can be readily integrated to scale to arrays of devices that have smaller footprints. (photonics.com)
  • Heretofore, two modes i.e. a dynamic scattering (DS) mode and a phase change (PC) mode are known for liquid crystal optical devices utilizing light scattering as the operational principle. (google.es)
  • pulse
  • For high-bit-rate optical communications (160 to 640 Gb/s per channel) this is critical because of the short pulse durations of 2 to 0.5 ps. (photonics.com)
  • Previous studies with picosecond pulse excitation demonstrated that the interaction of pump pulses with phonons can lead to efficient stimulated Raman scattering (SRS) accompanying optical parametric oscillation or amplification processes (OPO/OPA), and to efficient polariton-phonon scattering. (osti.gov)
  • bandwidth
  • Differently, the source bandwidth, demodulation algorithm and optical spectrum analyzer resolution affect the resolution in the normal direction. (edu.pl)
  • pump
  • Furthermore, the pump intensity dependence of the redshifted OPA output, the temporal evolution of the parametric gain, as well as the pump spectral modulations suggest the presence of coupling between the nonlinear optical polarizations P NL of the impulsively excited phonons and those of parametrically amplified waves. (osti.gov)
  • effects
  • At high optical intensities, nonlinear effects in a material's response are generally described by a Taylor expansion. (photonics.com)
  • At the same time, due to the accelerated pace of industrialization and urbanization in recent decades and omission of their side effects, combustion processes have also become a major contributor to the global greenhouse gas (GHG) emissions [ 2 , 3 ]. (mdpi.com)
  • silicon
  • G. Liu, S.J. Fonash, "Polycrystalline Silicon Thin Film Transistors on Corning 7059 Glass Substrates Using Short Time, Low Temperature Processing", Appl. (patentgenius.com)