Results 31 to 40 of about 53,162 (277)

Coherent Raman Scattering Spectral Shapes in a Strong Excitation Regime (Model Calculations)

open access: yesPhotonics
The influence of the interference between coherent processes in third-order nonlinear Raman scattering on the spectral shapes of Raman-scattered light waves is numerically modeled and discussed in the cases of commonly used coherent Raman spectroscopy ...
Georgi B. Hadjichristov
doaj   +1 more source

Background-free time-resolved coherent Raman spectroscopy (CSRS and CARS): Heterodyne detection of low-energy vibrations and identification of excited-state contributions

open access: yesAPL Photonics, 2019
Coherent Raman scattering (CRS) spectroscopy techniques have been widely developed and optimized for different applications in biomedicine and fundamental science. The most utilized CRS technique has been coherent anti-Stokes Raman scattering (CARS), and
Pavel V. Kolesnichenko   +2 more
doaj   +1 more source

Coherent Modulation of the YBa2Cu3O6+x Atomic Structure by Displacive Stimulated Ionic Raman Scattering

open access: yes, 2015
We discuss the mechanism of coherent phonon generation by Stimulated Ionic Raman Scattering, a process different from conventional excitation with near visible optical pulses.
Cavalleri, A.   +5 more
core   +1 more source

Background free CARS imaging by phase sensitive heterodyne CARS [PDF]

open access: yes, 2008
In this article we show that heterodyne CARS, based on a controlled and stable phase-preserving chain, can be used to measure amplitude and phase information of molecular vibration modes.
Herek, J.L.   +4 more
core   +7 more sources

Sensitivity of coherent anti-Stokes Raman lineshape to time asymmetry of laser pulses

open access: yes, 2014
We show that coherent anti-Stokes Raman lineshapes do not follow known spectral profiles if the time asymmetry of realistic laser pulses is taken into account.
Bengtsson, Per-Erik   +2 more
core   +1 more source

Realignment-enhanced coherent anti-Stokes Raman scattering (CARS) and three-dimensional imaging in anisotropic fluids

open access: yes, 2008
We apply coherent anti-Stokes Raman Scattering (CARS) microscopy to characterize director structures in liquid crystals.Comment: 14 pages, 11 ...
Aliaksandr V. Kachynski   +43 more
core   +1 more source

Broadband Coherent Raman Scattering Spectroscopy at 50,000,000 Spectra per Second

open access: yesUltrafast Science
Raman scattering spectroscopy is widely used as an analytical technique in various fields, but its measurement process tends to be slow due to the low scattering cross-section.
Takuma Nakamura   +2 more
doaj   +1 more source

Hyper-Raman scattering from vitreous boron oxide: coherent enhancement of the boson peak

open access: yes, 2005
Hyper-Raman scattering spectra of vitreous B$_2$O$_3$ are reported and compared to Raman scattering results. The main features are indexed in terms of vibrations of structural units.
B. Hehlen   +7 more
core   +1 more source

Terahertz beats of vibrational modes studied by femtosecond coherent Raman spectroscopy [PDF]

open access: yes, 1987
A recently developed femtosecond coherent Raman technique allows the measurement of Fourier transform coherent Raman spectra with high-frequency differences.
Holzapfel, Wolfgang   +3 more
core   +3 more sources

Coherent Anti-Stokes Hyper-Raman Spectroscopy

open access: yesNature Communications
Coherent Raman scattering spectroscopies have been established as a powerful tool for investigating molecular systems with high chemical specificity. The existing coherent Raman scattering techniques detect only Raman active modes, which are a part of ...
Kazuki Inoue, Masanari Okuno
doaj   +1 more source

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