Regimes of atomic diffraction: Raman versus bragg diffraction in retroreflective geometries

authored by
Sabrina Hartmann, Jens Jenewein, Enno Giese, Sven Abend, Albert Roura, Ernst M. Rasel, Wolfgang P. Schleich
Abstract

We provide a comprehensive study of atomic Raman and Bragg diffraction when coupling to a pair of counterpropagating light gratings (double diffraction) or to a single one (single diffraction) and discuss the transition from one case to the other in a retroreflective 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.

Organisation(s)
Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s)
Ulm University
Texas A and M University
DLR-Institute of Quantum Technologies
Type
Article
Journal
Physical Review A
Volume
101
No. of pages
16
ISSN
2469-9926
Publication date
08.05.2020
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Electronic version(s)
https://arxiv.org/abs/1911.12169 (Access: Open)
https://doi.org/10.1103/PhysRevA.101.053610 (Access: Closed)