TU Darmstadt / ULB / TUbiblio

Atomic Raman scattering: Third-order diffraction in a double geometry

Hartmann, Sabrina ; Jenewein, Jens ; Abend, Sven ; Roura, Albert ; Giese, Enno (2020)
Atomic Raman scattering: Third-order diffraction in a double geometry.
In: Physical Review A, 102 (6)
doi: 10.1103/PhysRevA.102.063326
Artikel, Bibliographie

Dies ist die neueste Version dieses Eintrags.

Kurzbeschreibung (Abstract)

In a retroreflective scheme with an atom initially at rest, atomic Raman diffraction adopts some of the properties of Bragg diffraction due to additional couplings to off-resonant momenta. As a consequence, double Raman diffraction has to be performed in a Bragg-type regime, where the pulse duration is sufficiently long to suppress diffraction into spurious orders. Taking advantage of this regime, double Raman allows for resonant higher-order diffraction. We study theoretically the case of third-order diffraction and compare it to first order as well as a sequence of first-order Raman pulses giving rise to the same momentum transfer as the third-order pulse. Moreover, we demonstrate that interferometry is possible, and we investigate amplitude and contrast of a third-order double Raman Mach-Zehnder interferometer. In fact, third-order diffraction constitutes a competitive tool for the diffraction of ultracold atoms and interferometry based on large momentum transfer since it allows one to reduce the complexity of the experiment as well as the total duration of the diffraction process compared to a sequence, at the cost of higher pulse intensities.

Typ des Eintrags: Artikel
Erschienen: 2020
Autor(en): Hartmann, Sabrina ; Jenewein, Jens ; Abend, Sven ; Roura, Albert ; Giese, Enno
Art des Eintrags: Bibliographie
Titel: Atomic Raman scattering: Third-order diffraction in a double geometry
Sprache: Englisch
Publikationsjahr: 22 Dezember 2020
Ort: Woodbury, NY
Verlag: APS
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Physical Review A
Jahrgang/Volume einer Zeitschrift: 102
(Heft-)Nummer: 6
Kollation: 12 Seiten
DOI: 10.1103/PhysRevA.102.063326
URL / URN: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.102.0...
Zugehörige Links:
Kurzbeschreibung (Abstract):

In a retroreflective scheme with an atom initially at rest, atomic Raman diffraction adopts some of the properties of Bragg diffraction due to additional couplings to off-resonant momenta. As a consequence, double Raman diffraction has to be performed in a Bragg-type regime, where the pulse duration is sufficiently long to suppress diffraction into spurious orders. Taking advantage of this regime, double Raman allows for resonant higher-order diffraction. We study theoretically the case of third-order diffraction and compare it to first order as well as a sequence of first-order Raman pulses giving rise to the same momentum transfer as the third-order pulse. Moreover, we demonstrate that interferometry is possible, and we investigate amplitude and contrast of a third-order double Raman Mach-Zehnder interferometer. In fact, third-order diffraction constitutes a competitive tool for the diffraction of ultracold atoms and interferometry based on large momentum transfer since it allows one to reduce the complexity of the experiment as well as the total duration of the diffraction process compared to a sequence, at the cost of higher pulse intensities.

ID-Nummer: Artikel-ID: 063326
Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Angewandte Physik
05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenoptik
05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenphysik
Hinterlegungsdatum: 18 Jul 2022 07:38
Letzte Änderung: 05 Sep 2024 08:59
PPN: 503197696
Export:
Suche nach Titel in: TUfind oder in Google

Verfügbare Versionen dieses Eintrags

Frage zum Eintrag Frage zum Eintrag

Optionen (nur für Redakteure)
Redaktionelle Details anzeigen Redaktionelle Details anzeigen