Coherence as ultrashort pulse train generator

Abstract

Intense, well-controlled regular light pulse trains start to play a crucial role in many fields of physics. We theoretically demonstrate a very simple and robust technique for generating such periodic ultrashort pulses from a continuous probe wave which propagates in a dispersive thermal gas media. * Electronic address: gmurad@ysu.am

Quantum superposition principle and generation of short optical pulses

“…We carry a detailed analysis of how the superposition nature of atomic states splits the incident monochromatic wave into a train of ultrashort (and high power) pulses in a three-level medium. Such a qualitatively new and dramatic effect of superposition principle has already been identified in our previous papers [34,35]. However, it has proceeded from a two-level medium and two (probe and pump) optical fields, thus somewhat disguising the inherent ability of superposition principle in this problem.…”

“…Simultaneously, the technical realization of originally proposed scheme seems stringent as much as it is difficult to onset the preliminary quantum superposition between the energy levels in the optical range of Bohr frequencies. Presented in this paper scheme clarifies the main idea of [34,35] and extends its formalism into much headmost ideological and experimental conditions using Λ-type interaction scheme and only one travelling wave.…”