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)

BibTeX

@article{48884cc3d5694ee88f62f67423b464a9,
title = "Regimes of atomic diffraction: Raman versus bragg diffraction in retroreflective geometries",
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.",
author = "Sabrina Hartmann and Jens Jenewein and Enno Giese and Sven Abend and Albert Roura and Rasel, {Ernst M.} and Schleich, {Wolfgang P.}",
note = "Funding Information: We thank C. M. Carmesin, A. Friedrich, M. Gebbe, and C. Schubert for fruitful discussions. This project was generously supported by the German Aerospace Center (Deutsches Zentrum f{\"u}r Luft- und Raumfahrt, DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (Bundesministerium f{\"u}r Wirtschaft und Energie, BMWi) under the Grants No. 50WM1556 (QUANTUS IV), No. 50WM1956, No. 50WM1952 (QUANTUS V), No. 50WP1705, No. 50WP1700 (BECCAL), and No. 50RK1957 (QGYRO). The research of the is financially supported by the Ministry of Science, Research and Art Baden-W{\"u}rttemberg (Ministerium f{\"u}r Wissenschaft, Forschung und Kunst Baden-W{\"u}rttemberg). The research of the Institut f{\"u}r Quantenoptik is financially supported by the CRC 1227 DQmat within the projects A05 and B07, the EXC 2123 Quantum Frontiers within the research units B02 and B05, the QUEST-LFS, the Association of German Engineers (Verein Deutscher Ingenieure, VDI) with funds provided by the Federal Ministry of Education and Research (Bundesministerium f{\"u}r Bildung und Forschung, BMBF) under Grant No. VDI 13N14838 (TAIOL), and “Nieders{\"a}chsisches Vorab” through the “Quantum- and Nano-Metrology (QUANOMET)” initiative within the project QT3 as well as through “F{\"o}rderung von Wissenschaft und Technik in Forschung und Lehre” for the initial funding of research in the new DLR-SI Institute. W.P.S. is most grateful to Texas A&M University for a Faculty Fellowship at the Hagler Institute for Advanced Study at the Texas A&M University as well as to the Texas A&M AgriLife Research for its support. ",
year = "2020",
month = may,
day = "8",
doi = "10.1103/PhysRevA.101.053610",
language = "English",
volume = "101",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "5",
}