Integrated atomic quantum technologies in demanding environments: development and qualification of miniaturized optical setups and integration technologies for UHV and space operation

Autor: Christ, M., Kassner, A., Smol, R., Bawamia, A., Peters, A., Wurz, M., Rasel, E., Wicht, A., Krutzik, M., Karafolas, Nikos, Sodnik, Zoran, Cugny, Bruno
Rok vydání: 2019
Předmět:
Zdroj: International Conference on Space Optics-ICSO 2018 : Chania, Greece, 9-12 October 2018
Proceedings of SPIE 11180 (2018)
DOI: 10.1117/12.2536215
Popis: Employing compact quantum sensors in field or in space (e.g., small satellites) implies demanding requirements on components and integration technologies. Within our work on integrated sensors, we develop miniaturized, ultra-stable optical setups for optical cooling and trapping of cold atomic gases. Besides challenging demands on alignment precision, and thermo-mechanical durability, we specifically address ultra-high vacuum (UHV) compatibility of our integration technologies and optical components. A prototype design of an UHV-compatible, crossed beam optical dipole trap setup and its application within a cold atomic quantum sensor is described. First qualification efforts on adhesive micro-integration technologies are presented. 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 or gamma radiation exposure. For vacuum compatibility testing, a versatile UHV testing system is currently being set up, enabling residual gas analysis and measurement of total gas rates down to 5•10-10mbar l/s at a base pressure of 10-11 mbar, exceeding the common ASTM E595 test.
Databáze: OpenAIRE