Stimulated Compton scattering of surface plasma wave excited over metallic surface by a laser

Deepika Goel, Prashant Chauhan, Anshu Varshney, D. B. Singh, Vivek Sajal

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A high-frequency surface plasma wave (SPW) excited over metallic surface irradiated by a laser beam, can undergo stimulated Compton scattering if phase velocity of daughter plasma wave is equal to the Fermi velocity for metal. The pump SPW parametrically excites a quasi-electrostatic plasma wave and a backscattered sideband SPW at resonance ω0 = ω-ω1 and. The growth rate of Compton process increases with the frequency of incident laser and turns out to be 5.425 × 1010 rad/s at laser frequency ω0 = 0.7595 × 1015 rad/s for incident laser amplitude A 0L = 11 × 1011 V/m, laser spot size b = 1.38 × 10-5 m, and free electron density of metal n 0 = 5.85 × 1028/m3. The excitation of highly damped quasi-electrostatic plasma wave in this parametric process provide a better nonlinear option for surface heating as compared with direct laser heating. The process can also be used for diagnostics purposes.

Original languageEnglish
Pages (from-to)641-646
Number of pages6
JournalLaser and Particle Beams
Issue number4
StatePublished - 21 Sep 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Cambridge University Press.


  • Parametric instability
  • Plasma-beam interactions
  • Surface plasma waves


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