Integrated atomic quantum technologies in demanding environments

development and qualification of miniaturized optical setups and integration technologies for UHV and space operation

authored by: Marc Christ, Alexander Kassner, Robert Smol, Ahmad Bawamia, Hendrik Heine, Waldemar Herr, Achim Peters, Marc Christopher Wurz, Ernst Maria Rasel, Andreas Wicht, Markus Krutzik
Abstract: Employing quantum sensors in field or in space implies demanding requirements on the used components and integration technologies. Within our work on compact atomic sensors, we develop miniaturized, ultra-stable optical setups for optical cooling and trapping of cold atomic gases on atom chips. Besides challenging demands on alignment precision and thermo-mechanical durability, we specifically address ultra-high vacuum (UHV) compatibility of our adhesive integration technology and the assembled optical components. A prototype of an UHV-compatible, crossed beam optical dipole trap at 1064 nm for application within a cold rubidium atomic quantum sensor currently in development at the Joint Lab Integrated Quantum Sensors at Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik is described. We describe the design and first qualification efforts on adhesive micro-integration technologies. These tests are conducted in application-relevant geometries and material combinations common for micro-integrated optical setups. Adhesive aging will be investigated by thermal cycling and radiation exposure. For vacuum compatibility testing, a versatile UHV testing system for samples up to 65×65mm2 footprint is currently being set up, enabling residual gas analysis, temperature cycling up to 200∘C and measurement of total gas rates down to expected 5×10-10mbarl/s at a base pressure of 10-11mbar, exceeding the common ASTM E595 test.
Organisation(s): Institute of Microtechnology
Institute of Quantum Optics
QuantumFrontiers
External Organisation(s): Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik (FBH)
Humboldt-Universität zu Berlin
Type: Article
Journal: CEAS Space Journal
Volume: 11
Pages: 561-566
No. of pages: 6
ISSN: 1868-2502
Publication date: 01.12.2019
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Aerospace Engineering, Space and Planetary Science
Electronic version(s): https://www.repo.uni-hannover.de/bitstream/123456789/10335/1/Christ2019.pdf (Access: Open)
https://doi.org/10.1007/s12567-019-00252-0 (Access: Closed)

BibTeX

@article{b8568114b1e34e32a830b40273225db9,
title = "Integrated atomic quantum technologies in demanding environments: development and qualification of miniaturized optical setups and integration technologies for UHV and space operation",
abstract = "Employing quantum sensors in field or in space implies demanding requirements on the used components and integration technologies. Within our work on compact atomic sensors, we develop miniaturized, ultra-stable optical setups for optical cooling and trapping of cold atomic gases on atom chips. Besides challenging demands on alignment precision and thermo-mechanical durability, we specifically address ultra-high vacuum (UHV) compatibility of our adhesive integration technology and the assembled optical components. A prototype of an UHV-compatible, crossed beam optical dipole trap at 1064 nm for application within a cold rubidium atomic quantum sensor currently in development at the Joint Lab Integrated Quantum Sensors at Ferdinand-Braun-Institut, Leibniz-Institut f{\"u}r H{\"o}chstfrequenztechnik is described. We describe the design and first qualification efforts on adhesive micro-integration technologies. These tests are conducted in application-relevant geometries and material combinations common for micro-integrated optical setups. Adhesive aging will be investigated by thermal cycling and radiation exposure. For vacuum compatibility testing, a versatile UHV testing system for samples up to 65×65mm2 footprint is currently being set up, enabling residual gas analysis, temperature cycling up to 200∘C and measurement of total gas rates down to expected 5×10-10mbarl/s at a base pressure of 10-11mbar, exceeding the common ASTM E595 test.",
keywords = "Adhesive bonding, Integrated quantum sensors, Microintegration, Microoptics, Optical dipole trap, UHV qualification",
author = "Marc Christ and Alexander Kassner and Robert Smol and Ahmad Bawamia and Hendrik Heine and Waldemar Herr and Achim Peters and Wurz, {Marc Christopher} and Rasel, {Ernst Maria} and Andreas Wicht and Markus Krutzik",
note = "Funding Information: This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy under Grant numbers DLR 50WM1648-50.",
year = "2019",
month = dec,
day = "1",
doi = "10.1007/s12567-019-00252-0",
language = "English",
volume = "11",
pages = "561--566",
journal = "CEAS Space Journal",
issn = "1868-2502",
publisher = "Springer-Verlag Wien",
number = "4",
}