Results 251 to 260 of about 11,558 (295)
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On the spectra of resonant coherent Raman scattering
Optical and Quantum Electronics, 1980The spectra of resonant coherent anti-Stokes and Stokes Raman scattering of excited molecules are calculated and discussed. The interaction of light and molecules is treated semi-classically. The energy level diagram of four energy levels describing the process is used in four modifications possible for excited molecules.
E. N. Keskinova, P. P. Kircheva
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Second-order coherent Raman scattering
Physical Review A, 1978Detailed dispersion curves of second-order coherent anti-Stokes Raman scattering (CARS) (${\ensuremath{\omega}}_{4}=3{\ensuremath{\omega}}_{1}\ensuremath{-}2{\ensuremath{\omega}}_{2}$) are reported for benzene with the laser frequency difference ${\ensuremath{\omega}}_{1}\ensuremath{-}{\ensuremath{\omega}}_{2}$ near the 992-${\mathrm{cm}}^{\ensuremath{-
A. Compaan, E. Wiener-Avnear, S. Chandra
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Fröhlich coherent vibrations and raman scattering
Czechoslovak Journal of Physics, 1991Coherent vibration systems are very likely composed of oscillating protein molecules located in the closed surface of the plasma membrane. Except short periods in the cell life, the distribution of the oscillating molecules corresponds to the condition of the minimum energy of the generated electromagnetic field.
J. Pokorný, J. Fiala, K. Vacek
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Concentration dependence in coherent Raman scattering
Journal of Modern Optics, 2008We investigate the concentration dependence of the femtosecond coherent anti-stokes Raman scattering (CARS) signals collected from several mixtures of molecules. We demonstrate a clear quadratic dependence of the transmitted CARS signal on the number of molecules of pyridine in water by looking at the Raman signal at 1030 cm−1.
Arthur Dogariu +3 more
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Raman scattering of light by coherent polaritons
Soviet Journal of Quantum Electronics, 1975A theory is presented of the active speetroscopy using steady-state spontaneous Raman scattering by polaritons, i.e., spontaneous Raman scattering of a "test" wave ωπ by polaritons generated in an independent process of polariton stimulated Raman scattering of a given high-power pump wave ω1 with a possible additional illumination at the frequencies of
V L Strizhevskii, Yu N Yashkir
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Molecular symmetries by coherent Raman scattering
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017Obtaining information on the matter organization on the micrometer scale still remains a challenge in physics, chemistry or biology. Non-linear vibrational processes such as Coherent Anti-Stokes Raman Scattering (CARS) are powerful tools for 3D imaging of chemical properties without sample preparation.
Carsten Cleff +3 more
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Coherent Raman scattering with three lasers
Applied Physics Letters, 1978General conditions for four-wave mixing processes are investigated for the three-dimensional geometry. Unlike the standard two-frequency coherent Raman scattering, the use of three laser beams allows great flexibility in the phase-matching condition. Theoretically calculated plots are presented for dispersive and nondispersive media and are compared ...
S. Chandra, A. Compaan, E. Wiener-Avnear
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Coherent Raman Scattering Microscopy
2009A series of advances over the past decade have made the combination of coherent Raman scattering (CRS) with optical microscopy a highly sensitive and chemically selective tool for the label-free and noninvasive analysis of chemical species or biological components inside a sub-femtoliter probe volume. By exploiting the coherent driving and detection of
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Applications of Coherent Raman Scattering
2010Recent explorations based on the concept of molecular coherence have lead to exciting developments, extending the ideas of coherence from atomic physics to more complex, molecular systems. Atomic coherence lies at the core of such fascinating phenomena as electromagnetically induced transparency, ultra- slow light propagation, and lasing without ...
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The Journal of Chemical Physics, 1984
In both spontaneous Raman and Hyper-Raman scattering from isotropic systems, scattering due to one of the spherical tensor invariants cannot be eliminated. It is shown that these invariants can be eliminated through use of an appropriate experimental geometry in coherent Raman and hyper-Raman scattering. Applications of this technique are presented.
R. A. Desiderio, B. S. Hudson
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In both spontaneous Raman and Hyper-Raman scattering from isotropic systems, scattering due to one of the spherical tensor invariants cannot be eliminated. It is shown that these invariants can be eliminated through use of an appropriate experimental geometry in coherent Raman and hyper-Raman scattering. Applications of this technique are presented.
R. A. Desiderio, B. S. Hudson
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