Amplification of mid-infrared lasers via backscattering in magnetized plasmas

Research output: Contribution to journalArticle

Abstract

Plasmas may be used as gain media for amplifying intense lasers, and external magnetic fields may be applied to improve the performance. For midinfrared lasers, the requisite magnetic field is on the megagauss scale, which can already be provided by current technologies. Designing the laser amplifier requires knowing the magnetized three-wave coupling coefficient, which is mapped out systematically in this paper. By numerically evaluating its formula, we demonstrate how the coupling coefficient depends on the angle of wave propagation, laser polarization, magnetic field strength, plasma temperature, and plasma density in the backscattering geometry. Since the mediation is now provided by magnetized plasma waves, the coupling can differ significantly from unmagnetized Raman and Brillouin scatterings.

Original languageEnglish (US)
Article number0721141
JournalPhysics of Plasmas
Volume26
Issue number7
DOIs
StatePublished - Jul 1 2019

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Amplification of mid-infrared lasers via backscattering in magnetized plasmas'. Together they form a unique fingerprint.

Cite this