Results 291 to 300 of about 198,005 (333)
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Multi-Wavelength Excitation Brillouin Spectroscopy
IEEE Journal of Selected Topics in Quantum Electronics, 2021We propose and demonstrate, first on simulated spectra and then experimentally, a novel approach to correct the undesired background distortions in the Brillouin spectra caused by molecular filter's absorption, fluorescent emission, ambient room light or any other constant contaminant.
Maria Troyanova-Wood, Vladislav Yakovlev
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Hybrid multi-wavelength photoacoustic imaging
2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2018Multi-wavelength photoacoustic (PA) imaging has been studied extensively to explore the spectroscopic absorption contrast of biological tissues. To generate strong PA signals, a high-power wavelength-tunable pulsed laser source has to be employed, which is bulky and quite expensive.
Tingyang, Duan +5 more
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2002
Multi-wavelength LIDARs have been intensively researched and developed over the last decade, owing to their high potential in monitoring of environment and air pollution. The abbreviation LIDAR (Light Detection And Ranging) is now often used to describe many different devices for remote sensing.
V. Y. Baranov +5 more
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Multi-wavelength LIDARs have been intensively researched and developed over the last decade, owing to their high potential in monitoring of environment and air pollution. The abbreviation LIDAR (Light Detection And Ranging) is now often used to describe many different devices for remote sensing.
V. Y. Baranov +5 more
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Portable Multi-Wavelength Fluorescence Measurement Device
2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA), 2022© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted ...
Hagen, Raphael +4 more
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Metrologia, 1981
The main problem in the application of radiation pyrometry to the measurement of true surface temperatures is the large error arising from the unknown or varying emissivity of the surface. The nature of the additional information required for the class of techniques which utilize only the thermal radiation emitted from the surface is discussed.
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The main problem in the application of radiation pyrometry to the measurement of true surface temperatures is the large error arising from the unknown or varying emissivity of the surface. The nature of the additional information required for the class of techniques which utilize only the thermal radiation emitted from the surface is discussed.
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Multi-wavelength fluorescence tomography
SPIE Proceedings, 2016The strong scattering and absorption of light in biological tissue makes it challenging to model the propagation of light, especially in deep tissue. This is especially true in fluorescent tomography, which aims to recover the internal fluorescence source distribution from the measured light intensities on the surface of the tissue.
Tiffany C. Kwong +6 more
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Multi-Wavelength Spectrophotometric Analysis
2022On the basis of the absorbance activity law, it is possible to carry out the spectrophotometric determination of two individual components (having totally or partially overlapping spectra) in a binary mixture. This determination can be carried out in a very precise and simple way by introducing ourselves in the multicomponent analysis by means of the ...
Eugenia Gabriela Carrillo-Cedillo +4 more
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Multi-Wavelengths Speckle Images
Frontiers in Optics / Laser Science, 2020We present adaptive algorithms for speckle dynamic images with light of different wavelengths. We carried out an experiment to test this approach, namely reading hidden drawing under paper and papyrus.
L. Buffarini +5 more
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Multi-wavelength holographic profilometry
SPIE Proceedings, 2006A novel method for surface profilometry by holography is presented. We used a diode laser emitting at many wavelengths simultaneously as the light source and a Bi 12 TiO 20 (BTO) crystal as the holographic medium in single exposure processes. The employ of multi-wavelength, large free spectral range (FSR) lasers leads to holographic images covered of ...
E. A. Barbosa +2 more
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Multi-wavelength transport networks
IEEE Communications Magazine, 1994Optical networking is attracting a large amount of interest, particularly for local access and increasingly for long-haul, or core, network applications. However, optical networks are essentially analog, and with this return to analog transmission there are a number of issues that need to be understood and overcome if the concept of an optical ...
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