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
Article, Bibliographie
This is the latest version of this item.
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 2020 |
| Creators: | Hartmann, Sabrina ; Jenewein, Jens ; Abend, Sven ; Roura, Albert ; Giese, Enno |
| Type of entry: | Bibliographie |
| Title: | Atomic Raman scattering: Third-order diffraction in a double geometry |
| Language: | English |
| Date: | 22 December 2020 |
| Place of Publication: | Woodbury, NY |
| Publisher: | APS |
| Journal or Publication Title: | Physical Review A |
| Volume of the journal: | 102 |
| Issue Number: | 6 |
| Collation: | 12 Seiten |
| DOI: | 10.1103/PhysRevA.102.063326 |
| URL / URN: | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.102.0... |
| Corresponding Links: | |
| 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. |
| Identification Number: | Artikel-ID: 063326 |
| Divisions: | 05 Department of Physics 05 Department of Physics > Institute of Applied Physics 05 Department of Physics > Institute of Applied Physics > Theoretical Quantum Optics 05 Department of Physics > Institute of Applied Physics > Theoretical Quantum Physics Group |
| Date Deposited: | 18 Jul 2022 07:38 |
| Last Modified: | 05 Sep 2024 08:59 |
| PPN: | 503197696 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
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Atomic Raman scattering: Third-order diffraction in a double geometry. (deposited 05 Aug 2024 09:54)
- Atomic Raman scattering: Third-order diffraction in a double geometry. (deposited 18 Jul 2022 07:38) [Currently Displayed]
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