Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 11: Quantum Technologies II
Q 11.5: Vortrag
Montag, 14. März 2022, 17:45–18:00, Q-H13
Cryogenic Fiber-based Fabry-Pérot Microcavities — •Timon Eichhorn1, Maximilian Pallmann1, Thomas Hümmer2, and David Hunger1 — 1Karlsruher Institut für Technologie, Karlsruhe, Germany — 2Qlibri Projekt, Fakultät für Physik, Ludwig-Maximilians-Universität München, Germany
One of the fundamental challenges in realizing optical quantum technologies is to have an efficient light-matter interface. A promising approach therefore is to use fiber-based Fabry-Pérot microcavities due to their high cooperativities and large coupling efficiencies into single-mode optical fibers [1]. For the sake of good coherence properties of the quantum emitters, systems have to be cooled down to cryogenic temperatures. During the past decade, much effort was put into the development of cryo-compatible microcavity stages. The noisy environment in closed-cycle cryostats poses the biggest challenge to operate such fully tunable open microcavities. Here, we present our achievements regarding the operation of high-finesse scanning cavities with cavity length stabilities of down to 1pm rms and full 3-axis tunability at cryogenic temperatures in closed-cycle and flow cryostats. [1] New J. Phys. 12 (2010) 065038