Interference-induced peak splitting in EUV superfluorescence

TL;DR

This paper studies how laser-induced quantum interference causes peak splitting in EUV superfluorescence in helium atoms, with control via gas density and laser intensity, opening avenues for pump-probe applications.

Contribution

It demonstrates how quantum interference effects can be used to control superfluorescence pulse splitting in EUV regimes, a novel approach in atomic physics.

Findings

Superfluorescence can split into two pulses due to quantum interference.

The splitting is controllable by gas density and laser intensity.

Potential for applications in pump-probe experiments.

Abstract

We investigate the laser-induced quantum interference in EUV superfluorescence occurring in a dense gas of $\Lambda$-type helium atoms coupled by a coherent laser field in the visible region. Due to the constructive interatomic and intraatomic interferences, the superfluorescence can split in two pulses conveniently controlled by the gas density and intensity of the driving field, suggesting potential applications for pump-probe experiments.