Lower hybrid wave assisted laser third harmonic generation in magneto plasma

Electrostatic modes present in laser produced plasma are capable of generating strong harmonic radiation. Electrostatic waves provide phase matching and contribute to non-linear coupling. In this paper, lower hybrid waves assist in k-matching to produce the third harmonic of the laser. As the freque...

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Bibliographic Details
Published inAIP advances Vol. 10; no. 9; pp. 095131 - 095131-6
Main Authors Tyagi, Yachna, Tripathi, Deepak
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.09.2020
AIP Publishing LLC
Subjects
Amplitudes
Electrostatic waves
Harmonic generations
Harmonic radiation
Lasers
Phase matching
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Summary:Electrostatic modes present in laser produced plasma are capable of generating strong harmonic radiation. Electrostatic waves provide phase matching and contribute to non-linear coupling. In this paper, lower hybrid waves assist in k-matching to produce the third harmonic of the laser. As the frequency of the lower hybrid wave is very small, the harmonic produced is close to exact. At normalized parameters (amplitude, density, and plasma length), the normalized amplitude of the third harmonic is quite high at a particular value of ω0/ωp and ωc/ωp. This occurs in the proximity of upper hybrid resonance as the process becomes resonant for this value. The magnitude of the normalized amplitude increases as ω02 is close to ωUH2.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0017207