Misc,

Regimes of atomic diffraction: Raman vs. Bragg in retro-reflective geometries

, , , , , , and .
(2019)cite arxiv:1911.12169Comment: 13 pages, 11 figures.

Abstract

We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counter-propagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a retro-reflective geometry as the Doppler detuning changes. In contrast to single diffraction, double Raman loses its advantage of high diffraction efficiency for short pulses and has to be performed in a Bragg-type regime. Moreover, the structure of double diffraction leads to further limitations for broad momentum distributions on the efficiency of mirror pulses, making the use of ultra-cold ensembles essential for high diffraction efficiency.

Tags

Users

  • @j.siemss

Comments and Reviews