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THz generation by the beating of two high intense laser beams

Published online by Cambridge University Press:  01 March 2013

RABEA Q. NAFIL ,
MONIKA SINGH ,
A. H. AL-JANABI  and
R. P. SHARMA
RABEA Q. NAFIL
Affiliation:
Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
MONIKA SINGH
Affiliation:
Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110016, India ([email protected])
A. H. AL-JANABI
Affiliation:
Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq
R. P. SHARMA
Affiliation:
Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110016, India ([email protected])
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Abstract

The nonlinear coupling of two high-power laser beams in plasmas in the presence of a transverse, static electric field is investigated to generate a difference frequency terahertz (THz) radiation. The relativistic variation of electron mass in the presence of two high-power laser beams is responsible for producing a nonlinear current driving the THz radiation. For typical laser and plasma parameters, we report the efficiency of the order of ~10−4 for the current scheme.

Type
Papers
Information
Journal of Plasma Physics , Volume 79 , Issue 5 , October 2013 , pp. 657 - 660
Copyright
Copyright © Cambridge University Press 2013 

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