Results 171 to 180 of about 464 (204)
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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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Higher Order Coherent Raman Scattering
1978There has recently been much interest in the third order nonlinear light mixing, especially the process of coherent anti-Stokes (Stokes) Raman scattering — the CARS (CSRS) effect[1–4].
S. Chandra, A. Compaan, E. Wiener-Avnear
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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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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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Cooling Silicon Raman Lasers with Coherent Anti-Stokes Raman Scattering
Optics and Photonics News, 2007In this paper we present an original technique, to mitigate the heat dissipation in Raman lasers. The lasing mechanism of a Raman laser is stimulated Stokes Raman scattering (SSRS), where a pump photon is converted into a lower energy Stokes photon and a phonon or heat, the so-called quantum-defect heating.
Vermeulen, Nathalie +2 more
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Coherent versus incoherent Raman scattering: molecular coherence excitation and measurement
Optics Letters, 2007We present a comparative analysis of spontaneous and coherent Raman scattering on pyridine. The instantaneous excitation of the molecular coherence is done by a pair of ultrashort preparation pulses. Then, a long narrowband probe pulse is scattered off the molecular vibrations.
Dmitry, Pestov +6 more
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Coherent Anti-Stokes Raman scattering with reflective optics
Applied Optics, 1983Attention is given to the implementation of a novel reflective optics configuration in which the lens normally employed for focusing and crossing the input laser beams in Coherent Anti-Stokes Raman spectroscopy (CARS) is replaced by a spherical mirror, allowing large crossing angles to be obtained with a single focusing device and permitting the laser ...
R R, Antcliff, O, Jarrett
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Theory of Spontaneous and Coherent Raman Scattering
1998Abstract The universality of the phenomenon, the convenience of the experimental technique and the simplicity of the spectra obtained enable the effect to be used as an experimental aid to the solution of a wide range of problems in physics and chemistry.
Eric O Potma, X Sunney Xie
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Coherent Anti-Stokes Raman Scattering
1986The Raman effect is an inelastic photon-scattering process, in which an atom or molecule absorbs one photon while simultaneously emitting another photon at a different frequency. The emitted photon is at a frequency, w0, which can be greater or less than the frequency, w1, of the absorbed photon: (1) where Δw > 0.
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