Results 221 to 230 of about 1,310,543 (278)

Coaxially nested component with asymmetric fiber resonant cavity and separation membrane for gaseous and dissolved gases detection. [PDF]

Nat Commun
Wan F, Kong W, Sun H, Ran T, Chen W.
europepmc   +1 more source

The Origin of the Frequency-Dependence of OH Stretch Vibrational Lifetimes in Liquid Water. [PDF]

J Phys Chem Lett
Pastorczak M, Radzewicz C, Biswas A, Kananenka AA.   +3 more
europepmc   +1 more source

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Amplified spontaneous Raman scattering in fiber Raman amplifiers

Journal of Lightwave Technology, 1986
Amplified spontaneous Raman scattered light power in forward and backward Raman amplifiers is theoretically and experimentally studied under the assumption of the constant Raman gain coefficient in the bandwidth of an optical filter. On the basis of the results, the power ratio of the amplified signal to amplified spontaneous scattering is discussed ...
N Edagawa, Y Iwamoto
exaly   +2 more sources

Amplified spontaneous Raman scattering and gain in fiber Raman amplifiers

Journal of Lightwave Technology, 1985
The spectrum of amplified spontaneous Raman scattering and gain in a fiber Raman amplifer has been calculated analytically as a function of distance and pump power. The model used makes no assumptions on the magnitude of the gain and considers the pump nondepletion region.
P Melman
exaly   +2 more sources

Spontaneous Raman Scattering for Gas Phase Diagnostics

MRS Proceedings, 1988
AbstractThe use of spontaneous rotational and vibrational Raman scattering for nonperturbing measurements of temperature and gas phase concentrations in combustion and in materials processing is reviewed. Theory of Raman intensities is briefly discussed and examples of Raman scattering from metal halide vapors in high temperature furnaces, laminar ...
Michael C. Drake
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Spontaneous Raman and Surface-Enhanced Raman Scattering Bioimaging

2021
Raman spectroscopy is a specific, noninvasive and nondestructive optical technique and is able to obtain chemical information from molecules. Optical imaging based on Raman spectroscopy has been a powerful technique for monitoring minute chemical changes of biological samples and generating images through direct or indirect strategies.
Li, Lin, Jian, Ye
openaire   +2 more sources

The buildup of stimulated Raman scattering from spontaneous Raman scattering

Optics Communications, 1981
Abstract We present a quantum electrodynamic theory which shows for the first time how stimulated Raman scattering builds up, both spatially and temporally, from spontaneous Raman scattering. We analytically solve operator Maxwell-Bloch equations to find the Stokes field operator, and thus the Stokes intensity, for both monochromatic and broad-band ...
J. Mostowski, M.G. Raymer
openaire   +1 more source