Results 211 to 220 of about 49,991 (265)
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1987
This chapter describes the application of stimulated Raman scattering as a practical method for the generation of tunable, coherent radiation. A brief theoretical discussion of the stimulated Raman effect in the steady state and transient-scattering regimes is presented.
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This chapter describes the application of stimulated Raman scattering as a practical method for the generation of tunable, coherent radiation. A brief theoretical discussion of the stimulated Raman effect in the steady state and transient-scattering regimes is presented.
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Raman and resonance-Raman scattering by erythrocyte ghosts
Biochimica et Biophysica Acta (BBA) - Biomembranes, 19751. We present the laser-Raman spectra of human erythrocyte ghosts, isolated by standard conditions and compare these with the spectra of lecithin liposomes and fat-free serum albumin. 2. The hydrocarbon stretching modes of membrane lipids are temperature sensitive and may serve as a index of hydrocarbon chain motion. 3.
D F, Wallach, S P, Verma
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1996
Abstract It is difficult to provide an overview from the physical standpoint of the enormous number of Raman scattering studies performed under pressure. On the other hand, the experimental aspect seems too simple: only a slight modification of the optical scheme is needed to replace a sample by a high-pressure cell, especially by a ...
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Abstract It is difficult to provide an overview from the physical standpoint of the enormous number of Raman scattering studies performed under pressure. On the other hand, the experimental aspect seems too simple: only a slight modification of the optical scheme is needed to replace a sample by a high-pressure cell, especially by a ...
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Raman scattering in Fibonacci superlattices
Physical Review Letters, 1987Raman scattering from acoustic phonons in Si-${\mathrm{Ge}}_{\mathrm{x}}$${\mathrm{Si}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$ Fibonacci superlattices is reported. The main features of the experimental results are determined by the Fourier components of the dependence on position along the growth direction of the photoelastic coefficient.
, Dharma-wardana +4 more
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Hole-Enhanced Raman Scattering
Applied Spectroscopy, 2006Stokes and anti-Stokes non-resonant hole-enhanced Raman scattering (HERS) spectra with high signal-to-noise ratio (S/N) are reported for the first time for aqueous phase R6G molecules adsorbed onto random nanoholes in thin gold films. Compared to conventional surface-enhanced Raman scattering from nanometric gold colloid particles,
John T, Bahns +4 more
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Waveguided Raman and Brillouin scattering
SPIE Proceedings, 2000Raman and Brillouin spectroscopy in planar waveguides can be performed by coupling the laser beam to the waveguide with a prism and by collecting the scattered light from the front surface. Brillouin spectra, which are different for excitation in the different modes of the waveguides, can be accounted for by a model that considers the space ...
Montagna, Maurizio +6 more
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Raman scattering tensors of tyrosine
Biospectroscopy, 1998Polarized Raman scattering measurements have been made of a single crystal of L-tyrosine by the use of a Raman microscope with the 488.0-nm exciting beam from an argon ion laser. The L-tyrosine crystal belongs to the space group P2(1)2(1)2(1) (orthorhombic), and Raman scattering intensities corresponding to the aa, bb, cc, ab and ac components of the ...
M, Tsuboi +6 more
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Theory of Graphene Raman Scattering
ACS Nano, 2016Raman scattering plays a key role in unraveling the quantum dynamics of graphene, perhaps the most promising material of recent times. It is crucial to correctly interpret the meaning of the spectra. It is therefore very surprising that the widely accepted understanding of Raman scattering, i.e., Kramers-Heisenberg-Dirac theory, has never been applied ...
Heller, Eric +6 more
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Instantaneous integrated Raman scattering
Applied Optics, 1983Lidar detection of atmospheric molecules using a Raman scattering technique being usually limited by low signals is enhanced by integration of the forward Raman scattered light over a large atmospheric volume. This integral can be measured instantaneously in the presence of a reflector at one edge of the optical path, increasing the SNR by a factor of ...
S, Egert +3 more
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The buildup of stimulated Raman scattering from spontaneous Raman scattering
Optics Communications, 1981Abstract 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
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