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Suppression of stimulated rotational Raman scattering over long air paths via controlling the polarization state

Published online by Cambridge University Press:  20 March 2015

B. Feng ,
X.M. Fan ,
Z.W. Lu ,
D.Y. Lin ,
F. Yang  and
Y.L. Wang
B. Feng
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, China
X.M. Fan
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China School of Physics and Optoelectronic Engineering, Weifang University, Weifang, China
Z.W. Lu*
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China
D.Y. Lin
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China
F. Yang
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China
Y.L. Wang*
Affiliation:
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, China
*
Address correspondence and reprint requests to: Z.W. Lu and Y.L. Wang, National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, P. O. Box 3031, Harbin 150080, China. E-mail: zw_lu@sohu.com, wyl@hit.edu.cn.
Address correspondence and reprint requests to: Z.W. Lu and Y.L. Wang, National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, P. O. Box 3031, Harbin 150080, China. E-mail: zw_lu@sohu.com, wyl@hit.edu.cn.
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Abstract

Stimulated rotational Raman scattering (SRRS) limits the effective transmission distances of the high-energy and high-power laser pulses in laser–fusion systems and other applications. A simple and practical method of suppressing SRRS process by controlling the polarization direction of Stokes light is proposed. For a narrowband, linearly polarized, flat-topped laser pulse of 351 nm with intensity of 2 GW/cm2 and width of 3 ns, the SRRS threshold distance in air is lengthened to 30.0 m from 16.2 m easily using the method. Simulation results demonstrate that the method is also applicable for broadband laser.

Keywords

Stimulated rotational Raman scatteringWave platePolarizerInertial confinement fusion drivers

Information

Type
Research Article
Information
Laser and Particle Beams , Volume 33 , Issue 2 , June 2015 , pp. 169 - 173
Copyright
Copyright © Cambridge University Press 2015 

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References

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