Propagation of radiation pulses through gas-plasma mixtures

TL;DR

This paper investigates how radiation pulses propagate through gas-plasma mixtures, revealing conditions for resonant amplification of radiation intensity due to volume plasmons, supported by numerical simulations.

Contribution

It derives dispersion relations for gas-plasma mixtures and demonstrates resonant amplification conditions through numerical simulations.

Findings

Resonant generation of volume plasmons can significantly amplify radiation.

Specific frequency ranges lead to resonant amplification.

Numerical simulations confirm the theoretical predictions.

Abstract

We determine the linear optical susceptibility of a radiation pulse propagating through a mixture of a gas of atoms or molecules and a plasma. For a specific range of radiation and plasma frequencies, resonant generation of volume plasmons significantly amplifies the radiation intensity. The conditions for resonant amplification are derived from the dispersion relations in the mixture, and the amplification is demonstrated in a numerical simulation of pulse propagation.