Quantum interference controlled resonance profiles: From lasing without inversion to photo-detection

TL;DR

This paper demonstrates how quantum interference can be used to control resonance profiles in a three-level system, impacting phenomena like lasing without inversion and photo-detection by adjusting QI strength and energy spacing.

Contribution

It introduces a method to manipulate resonance profiles via quantum interference in a three-level system, with applications to lasing without inversion and photo-detection.

Findings

Controlled enhancement and suppression of emission and absorption profiles.

Quantum interference manipulation affects resonance profiles.

Potential applications in quantum optics devices.

Abstract

In this work we report a quantum interference mediated control of the resonance profiles in a generic three-level system and investigate its effect on key quantum interference (QI) phenomena. Namely in a three level configuration with doublets in the ground or excited states, we show control over enhancement and suppression of the emission (absorption) profiles. This is achieved by manipulation of the strength of QI and the energy spacing of the doublets. We analyze the application of such QI induced control of the resonance profile in the framework of two limiting cases of lasing without inversion and photo-detection.