Doppler-Raman crossover in resonant scattering

TL;DR

This paper theoretically explores how light scattering from a moving resonant layer transitions from Doppler frequency shifts at low motion frequencies to Raman sidebands at higher frequencies, proposing a structure for experimental observation.

Contribution

It introduces a theoretical analysis of the Doppler-Raman crossover in resonant scattering and suggests a realistic quantum well structure for experimental validation.

Findings

Identification of the spectral crossover from Doppler to Raman effects

Proposal of a quantum well structure for observing the crossover

Analysis of the spectral features at different motion frequencies

Abstract

We consider theoretically light scattering by a resonant layer that periodically moves in real space. At small frequencies of motion the scattered light spectrum reveals the frequency shift that is governed by the Doppler effect. At higher motion frequencies, the scattered light spectra acquire sidebands stemming from the Raman effect. We investigate the crossover between these two regimes and propose a realistic quantum well structure for its observation.