Micro-cavity length stabilization for fluorescence enhancement using schemes based on higher order spatial modes
Abstract
We report on experimental investigation of potential high-performance cavity length stabilization using odd-indexed higher-order spatial modes. Schemes based on higher-order modes are particularly useful for micro-cavities that are used for enhanced fluorescence detection of a few emitters, which need to minimize photons leaking from a stabilization beam. We describe the design and construction of an assembly for a microcavity setup with tunable high passive stability. In addition, different types of active stabilization techniques based on higher-order modes, are then implemented and characterized based on their performance. We achieved a stability of about 0.5 pm RMS, while the error photons leaking from the continuous locking beam to a fluorescence detector are suppressed by more than 100-fold. We expect these results to be important for quantum technology implementations of various emitter-cavity setups, where these techniques provide a useful tool to meet the highly challenging demands.
Keywords
Cite
@article{arxiv.2412.00271,
title = {Micro-cavity length stabilization for fluorescence enhancement using schemes based on higher order spatial modes},
author = {A. Shehata Abdelatief and A. J. Renders and M. Alqedra and J. J. Hansen and D. Hunger and L. Rippe and A. Walther},
journal= {arXiv preprint arXiv:2412.00271},
year = {2024}
}