Thermal loss mechanism in the generation of multifrequency laser emission via stimulated Raman scattering and four-wave Raman mixing studied by photothermal refraction spectroscopy

2000 ◽  
Vol 70 (3) ◽  
pp. 355-359 ◽  
Author(s):  
Y. Hirakawa ◽  
T. Tomooka ◽  
T. Imasaka
Keyword(s):  
Raman Scattering ◽  
Laser Emission ◽  
Stimulated Raman Scattering ◽  
Thermal Loss ◽  
Loss Mechanism ◽  
Stimulated Raman

scholarly journals Stimulated Raman scattering in a non-eigenmode regime

2020 ◽  
Vol 8 ◽  
Author(s):  
Yao Zhao ◽  
Suming Weng ◽  
Zhengming Sheng ◽  
Jianqiang Zhu
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Laser Energy ◽  
Scattered Light ◽  
Incident Light ◽  
Loss Mechanism ◽  
Constant Frequency ◽  
Electrostatic Wave ◽  
Particle In Cell ◽  
Stimulated Raman

Stimulated Raman scattering (SRS) in plasma in a non-eigenmode regime is studied theoretically and numerically. Different from normal SRS with the eigen electrostatic mode excited, the non-eigenmode SRS is developed at plasma density $n_{e}>0.25n_{c}$ when the laser amplitude is larger than a certain threshold. To satisfy the phase-matching conditions of frequency and wavenumber, the excited electrostatic mode has a constant frequency around half of the incident light frequency $\unicode[STIX]{x1D714}_{0}/2$ , which is no longer the eigenmode of electron plasma wave $\unicode[STIX]{x1D714}_{pe}$ . Both the scattered light and the electrostatic wave are trapped in plasma with their group velocities being zero. Super-hot electrons are produced by the non-eigen electrostatic wave. Our theoretical model is validated by particle-in-cell simulations. The SRS driven in this non-eigenmode regime is an important laser energy loss mechanism in the laser plasma interactions as long as the laser intensity is higher than $10^{15}~\text{W}/\text{cm}^{2}$ .

Competition between stimulated Raman scattering and resonant laser emission

1988 ◽  
Vol 5 (7) ◽  
pp. 289-292 ◽  
Author(s):  
Cheng Bingying ◽  
Zhang Jie ◽  
Zhang Daozhong ◽  
Zhao Lizeng ◽  
Zhao Yuying ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Laser Emission ◽  
Stimulated Raman Scattering ◽  
Resonant Laser ◽  
Stimulated Raman

Orthorhombic (LiNbGeO5): efficient stimulated Raman scattering and tunable near-infrared laser emission from chromium doping

1998 ◽  
Vol 10 (4) ◽  
pp. 269-284 ◽  
Author(s):  
A.A. Kaminskii ◽  
H.J. Eichler ◽  
D. Grebe ◽  
R. Macdonald ◽  
J. Findeisen ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Near Infrared ◽  
Laser Emission ◽  
Stimulated Raman Scattering ◽  
Infrared Laser ◽  
Chromium Doping ◽  
Stimulated Raman

Ultra-violet Stimulated Raman Scattering of SrWO4 Crystal

2009 ◽  
Vol 24 (3) ◽  
pp. 563-566 ◽  
Author(s):  
Zheng-Ping WANG ◽  
Da-Wei HU ◽  
Huai-Jin ZHANG ◽  
Xin-Guang XU ◽  
Ji-Yang WANG ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Ultra Violet ◽  
Stimulated Raman

Bulk Laser Damage Threshold and Stimulated Raman Scattering in KTiOPO4 Crystal.

1996 ◽  
Vol 24 (8) ◽  
pp. 906-909
Author(s):  
Akio MIYAMOTO ◽  
Hidetsugu YOSHIDA ◽  
Yusuke MORI ◽  
Takatomo SASAKI ◽  
Sadao NAKAI
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Stimulated Raman
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