The dark resonances in the case of the absorption of optical radiation in double tunneling-coupled quantum wells

TL;DR

This paper investigates dark resonances in tunneling-coupled quantum wells, focusing on phase-dependent effects on coherent population trapping, absorption, and dispersion, revealing how phase variations can control resonance behavior.

Contribution

It introduces the phase-sensitive dependence of dark resonances in quantum wells and demonstrates how phase manipulation can restore or destroy these resonances.

Findings

Dark resonances are sensitive to the algebraic sum of phases of exciting fields.

Phase variation affects absorption and dispersion in quantum well media.

Restoration and destruction of dark resonances depend on phase control.

Abstract

This work is devoted to the research of conditions of the dark resonance (coherent population trapping) of the interaction of the laser radiation with tunneling-coupled quantum wells. The phase sensitive dependence of dark resonances has been investigated. We obtained that destruction as well as restoration of the dark resonances of the coherent population trapping is possible in dependence on algebraic sum of the phases of exciting fields. It is shown that the phase variation of exciting fields influences on the absorption and dispersion of the probe field in a medium with quantum wells.