Asymmetric resonance in selective reflection: Explanation via Fano-like mechanism

TL;DR

This paper demonstrates Fano-like asymmetric resonance in selective reflection from a two-level medium, linking it to coupled oscillator models and exploring effects like dielectric background, local-field correction, and optical bistability.

Contribution

It provides the first evidence of Fano-like resonance in selective reflection and connects it with optical phenomena such as bistability, expanding understanding of asymmetric resonances.

Findings

Evidence of Fano-like resonance in selective reflection

Connection between asymmetric resonance and optical bistability

Influence of dielectric background and local-field correction

Abstract

Fano mechanism is the universal explanation of asymmetric resonance appearing in different systems. We report the evidence of Fano-like resonance in selective reflection from a resonant two-level medium. We draw an analogy with the asymmetric resonance previously obtained for the coupled oscillators. We also take into account the effects of dielectric background and local-field correction and connect our results with optical bistability.