A Low-Temperature Tunable Microcavity featuring High Passive Stability and Microwave Integration
| Autor: | Herrmann, Yanik, Fischer, Julius, Scheijen, Stijn, Wolfs, Cornelis F. J., Brevoord, Julia M., Sauerzapf, Colin, Wienhoven, Leonardo G. C., Feije, Laurens J., Eschen, Martin, Ruf, Maximilian, Weaver, Matthew J., Hanson, Ronald |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Open microcavities offer great potential for the exploration and utilization of efficient spin-photon interfaces with Purcell-enhanced quantum emitters thanks to their large spectral and spatial tunability combined with high versatility of sample integration. However, a major challenge for this platform is the sensitivity to cavity length fluctuations in the cryogenic environment, which leads to cavity resonance frequency variations and thereby a lowered averaged Purcell enhancement. This work presents a closed-cycle cryogenic fiber-based microcavity setup, which is in particular designed for a low passive vibration level, while still providing large tunability and flexibility in fiber and sample integration, and high photon collection efficiency from the cavity mode. At temperatures below 10 Kelvin, a stability level of around 25 picometer is reproducibly achieved in different setup configurations, including the extension with microwave control for manipulating the spin of cavity-coupled quantum emitters, enabling a bright photonic interface with optically active qubits. Comment: Authors Yanik Herrmann and Julius Fischer contributed equally, 14 pages, 9 figures |
| Databáze: | arXiv |
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