Comparative study of electron acceleration by linearly and circularly polarized Hermite-cosh-Gaussian laser pulse in a vacuum

Jyoti Rajput, Ashok Kumar Pramanik, Pramod Kumar, Shiv Shankar Gaur, Ravindra Singh, Niti Kant

Research output: Contribution to journalArticlepeer-review

Abstract

Comparative study of electron acceleration by linearly polarized (LP) and circularly polarized (CP) Hermite-cosh-Gaussian lasers in vacuum has been analyzed. Hermite-cosh-Gaussian profile is a special kind of Gaussian profile whose decentered parameter (b) plays a crucial role in the electron acceleration. It has been observed that the electron energy enhancement for CP laser pulse is much higher as compared to LP laser pulse for optimized values of laser parameters like laser intensity parameter (a0), laser spot size (r0), etc. It is seen from the results that maximum electron energy gain increases rapidly with the increase in the value of decentred parameter for CP laser. The electron enhances more rapidly with propagation distance z for CP laser pulse. This energy enhancement persists continuously for the successive increment of the laser spot size (r0) and b. The laser mode index is also responsible for the electron energy enhancement. The plotted graphs also reveal that the energy enhancement is higher for CP laser pulse as compared to LP laser pulse for different parameters.

Original languageEnglish
Pages (from-to)642-647
Number of pages6
JournalJournal of Optics (India)
Volume52
Issue number2
DOIs
StatePublished - Jun 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive licence to The Optical Society of India.

Keywords

  • Decentered parameter
  • Electron acceleration
  • Hermite–Gaussian laser pulse
  • Polarization

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