Results 131 to 140 of about 2,931 (177)
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Polarization coherent anti-Stokes Raman scattering microscopy
Optics Letters, 2001We report polarization coherent anti-Stokes Raman scattering (P-CARS) microscopy that allows vibrational imaging with high sensitivity and spectral selectivity. The nonresonant background signals from both Raman scatterers and the solvent are efficiently suppressed in P-CARS microscopy.
J X, Cheng, L D, Book, X S, Xie
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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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Journal of Modern Optics, 2004
The non-classical effects of squeezing of light in coherent anti-Stokes Raman scattering (CARS) and coherent anti-Stokes hyper-Raman scattering (CAHRS) are investigated under the short-time approximation based on a fully quantum mechanical approach. In an idealized model CARS, the interaction is looked upon as a process involving absorption of a pump ...
Dilip Kumar Giri, P. S. Gupta
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The non-classical effects of squeezing of light in coherent anti-Stokes Raman scattering (CARS) and coherent anti-Stokes hyper-Raman scattering (CAHRS) are investigated under the short-time approximation based on a fully quantum mechanical approach. In an idealized model CARS, the interaction is looked upon as a process involving absorption of a pump ...
Dilip Kumar Giri, P. S. Gupta
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Quantitative Coherent Anti-Stokes Raman Scattering (CARS) Microscopy
The Journal of Physical Chemistry B, 2011The ability to observe samples qualitatively at the microscopic scale has greatly enhanced our understanding of the physical and biological world throughout the 400 year history of microscopic imaging, but there are relatively few techniques that can truly claim the ability to quantify the local concentration and composition of a sample.
Day, James P. R. +6 more
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Coherent anti-Stokes resonance Raman scattering
Optical and Quantum Electronics, 1979The intensity of coherent anti-Stokes resonance Raman scattering (CARRS) is calculated taking into account the resonant absorption of laser and anti-Stokes waves and changes in the molecule population. The resonant absorption causes an alteration of the phase of the laser wave leading to a decrease and periodic behaviour of the anti-Stokes intensity ...
J. Herrmann, M. Landmann
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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 anti‐Stokes Raman scattering in Raman lasers and Raman wavelength converters
Laser & Photonics Reviews, 2010AbstractIn this paper recent research progress on the use of Coherent Anti‐Stokes Raman Scattering (CARS) in Raman lasers and Raman wavelength converters is reviewed. The latest insights in the physical nature and behavior of CARS are addressed, and the recent performance breakthroughs in CARS‐based Raman wavelength conversion are discussed.
Vermeulen, Nathalie +2 more
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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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COHERENT ANTI-STOKES RAMAN SCATTERING HOLOGRAPHY: THEORY AND EXPERIMENT
Journal of Nonlinear Optical Physics & Materials, 2012We review coherent anti-Stokes Raman scattering (CARS) holography as a non-scanning, label-free, three-dimensional imaging technique. The theory of CARS and its integration with digital holography is explored. We then discuss the experimental implementations of CARS holography including in-line and off-axis modalities and the demonstrations of three ...
Edwards, Perry S. +5 more
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Coherent Anti-Stokes Raman Scattering
1981The possibility of carrying out temperature and concentration measurements in gases by a Raman spectroscopy analysis was suggested and demonstrated about a decade ago. Following some early publications on this subject [1,2], a massive effort was undertaken in order to evaluate the potential of spontaneous Raman scattering in the important areas of ...
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