Frequency shift and asymmetric line shape of the fourth anti-Stokes component from a hydrogen Raman shifter

1988 ◽  
Vol 27 (24) ◽  
pp. 5123 ◽  
Author(s):  
Wallace L. Glab ◽  
Jan P. Hessler
Keyword(s):  
Frequency Shift ◽  
Line Shape ◽  
Stokes Component ◽  
Anti Stokes

scholarly journals Панорамная спектроскопия спонтанного комбинационного рассеяния для диагностики струйных реагирующих потоков с использованием перестраиваемого фильтра Лио-Эмана

2018 ◽  
Vol 44 (2) ◽  
pp. 32
Author(s):  
Д.К. Шараборин ◽  
Д.М. Маркович ◽  
В.М. Дулин
Keyword(s):  
Raman Scattering ◽  
Liquid Crystalline ◽  
Laminar Flame ◽  
Tunable Filter ◽  
Spatial Density ◽  
Stokes Component ◽  
Spontaneous Raman Scattering ◽  
The Difference ◽  
Anti Stokes ◽  
Spatial Density Distribution

AbstractThe spatial-density distribution in burning a premixed methane–air swirling turbulent jet has been studied by measuring the intensity of the Stokes branch of spontaneous Raman scattering for vibrational–rotational transitions in nitrogen. An optical system comprising a Nd:YAG laser and the liquid-crystalline Lyot–Ehman tunable filter has been created and tested by measuring the temperature and density fields in a cone-shaped laminar flame. It has been established that the difference of data obtained using the Stokes component of Raman scattering in nitrogen and its ratio to the anti-Stokes component does not exceed 5% in a temperature range from 300 to 1800 K.

Dispersion der gekoppelten Wellen beim stimulierten Raman-Effekt in einfachen piezoelektrischen kubischen Kristallen

1979 ◽  
Vol 34 (2) ◽  
pp. 126-133
Author(s):  
L. Merten ◽  
J. Wenk
Keyword(s):  
Pump Wave ◽  
Dispersion Curves ◽  
Stokes Component ◽  
Piezoelectric Crystals ◽  
Stokes Waves ◽  
Explicit Formulae ◽  
Anti Stokes ◽  
Polariton Branch ◽  
Parametric Approximation

Abstract Even in the most simple case of cubic piezoelectric crystals with only one polariton branch the problem of coupling of polariton, Stokes and anti-Stokes waves in the parametric approximation leads to six coupled waves, each consisting of a polariton component, a Stokes component and an anti-Stokes component. The dispersion of all six coupled waves can be described by explicit formulae in very good approximation. The shift of the dispersion curves of the coupled waves against the dispersion curves of the uncoupled waves is proportional to the square of the amplitude of the pump wave

Calculation of the Stokes-component amplification with bias illumination in the anti-Stokes region

1969 ◽  
Vol 12 (7) ◽  
pp. 916-919
Author(s):  
Yu. I. Nedranets ◽  
V. I. Berezin ◽  
M. L. Kats
Keyword(s):  
Stokes Component ◽  
Anti Stokes

Anti-Stokes Frequency Shift and Evolution in Polarization-Maintaining Photonic Crystal Fiber with Two-Zero Dispersion Wavelengths

2009 ◽  
Vol 26 (8) ◽  
pp. 084201 ◽  
Author(s):  
Wang He-Lin ◽  
Leng Yu-Xin ◽  
Xu Zhi-Zhan ◽  
Qi Yi-Hong ◽  
Hu Ming-Lie ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Frequency Shift ◽  
Photonic Crystal Fiber ◽  
Crystal Fiber ◽  
Polarization Maintaining ◽  
Anti Stokes

Interpretation Coherent Anti-Stokes Raman Spectroscopy (CARS) Spectral Profiles

1979 ◽  
Vol 33 (3) ◽  
pp. 268-273 ◽  
Author(s):  
W. M. Shaub ◽  
S. Lemont ◽  
A. B. Harvey
Keyword(s):  
Raman Spectroscopy ◽  
Frequency Shift ◽  
Experiment Design ◽  
Nonlinear Susceptibility ◽  
Spectral Profile ◽  
Third Order ◽  
Spectral Profiles ◽  
Signal Dependence ◽  
Anti Stokes ◽  
Third Order Nonlinear Susceptibility

CARS spectral profiles are functionally described by the variation of the square of the total third-order, nonlinear susceptibility with the anti-Stokes frequency shift. This inherent, squared susceptibility signal dependence, when weighted by an experiment dependent convolution, produces a CARS spectral profile which is a problem specific to the experiment design.

Raman scattering of self-assembled gallium nitride nanorods synthesized by plasma-assisted molecular beam epitaxy

2005 ◽  
Vol 892 ◽  
Author(s):  
D. Wang ◽  
C.-C. Tin ◽  
J. R. Williams ◽  
M. Park ◽  
Y. S. Park ◽  
...  
Keyword(s):  
Residual Stress ◽  
Molecular Beam Epitaxy ◽  
Raman Scattering ◽  
Frequency Shift ◽  
Shape Analysis ◽  
Line Shape ◽  
Molecular Beam ◽  
Local Heating ◽  
Raman Mode ◽  
Line Shape Analysis

AbstractRaman scattering experiment was carried out to study material and electronic properties of the aligned GaN nanorods grown by plasma-assisted molecular beam epitaxy. Due to the small size of the nanorods and the relatively high power density of the laser illumination used in this investigation, local heating of the sample cannot be neglected. Special care has been taken to identify the frequency shift in the optical phonon peaks induced by local heating prior to any spectral analysis. The residual stress in the GaN nanorods was estimated by analyzing the frequency shift of its E2 Raman mode. It was found that the frequency of E2 mode is shifted by only 0.1 cm-1 comparing with the stress-free frequency, indicating a negligible residual stress in nanorods. Owing to aligned geometry of the nanorods and the back-scattering scattering geometry used in the experiment, A1(LO) Raman mode was collected. The free carrier concentration as well as electron mobility of the GaN nanorods were obtained by the line shape analysis of the coupled A1(LO) phonon-plasmon mode. The electron concentration and mobility of electron obtained from line shape analysis are 3.3×1017 cm-3 and 140 cm2/Vs, respectively. We presented a general method of better determining the electronic parameters of the GaN nanostructures via Raman scattering.

Sign in / Sign up

Export Citation Format

Share Document