Effect of quantum interference on the optical properties of a three-level V-type atomic system beyond the two-photon resonance condition

TL;DR

This paper investigates how quantum interference affects the optical properties of a three-level V-type atomic system beyond the two-photon resonance, revealing phase independence in certain conditions.

Contribution

It analyzes the optical properties of a three-level V-type system beyond two-photon resonance, highlighting phase independence and the effects of scattering on quantum interference.

Findings

Optical properties are generally phase independent.

Phase dependence arises from scattering of the coupling field.

Phase sensitivity disappears beyond the two-photon resonance.

Abstract

The effect of quantum interference on the optical properties of a pumped-probe three-level V-type atomic system is investigated. The probe absorption, dispersion, group index and optical bistability beyond the two-photon resonance condition are discussed. It is found that the optical properties of a medium in the frequency of the probe field, in general, are phase independent. The phase dependence arises from a scattering of the coupling field into the probe field at a frequency which in general differs from the probe field frequency. It is demonstrated that beyond the two-photon resonance condition the phase sensitivity of the medium will disappear.