Probability of Induced Emission in Atoms

TL;DR

This paper derives an expression for the probability of induced emission of high-order harmonics in atoms, analyzing how it depends on wave and medium parameters, and discusses conditions for observing and amplifying this emission.

Contribution

It provides a new formula for induced emission probability in high-order harmonics within the multiphoton ionization regime, including phase locking considerations.

Findings

Derived an expression for induced emission probability.

Established criteria for observing emission with phase locking.

Explored amplification of a UV probe wave in the interaction region.

Abstract

Expression for the probability of induced emission of high-order harmonics is obtained in the region where the multiphoton approximation is applicable to the description of the ionization of an atom. The dependence of this probability on the main parameters of the pump wave and the atomic medium is established. Criteria for observing emission are formulated with the consideration of phase locking. The possibility of amplifying a UV probe wave aimed through the region where the atoms interact with the pump wave is considered.