Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.63: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
CO2 laser fabrication of mirrors for cavity QED — •Riccardo Cipolletti, Stefan Häussler, Andrea B. Filipovski, Max Deisböck, and Alexander Kubanek — Institute for Quantum Optics, Ulm University, D-89081 Ulm, Germany
Coupling of solid state quantum emitters to optical microresonators to improve the optical properties of the emitters is a highly innovative field bringing quantum technology applications into reach. For this purpose high quality cavities are crucial. In particular, to achieve high values for cooperativity and Purcell enhancement [1], we need to obtain high finesse and small mode volume.
We show fabrication of cavity mirrors in fused silica using ablation by a CO2 laser. This method enables small surface roughness and radius of curvature, thus small scattering losses and mode volume. We obtain feedback on the quality and shape of our structures by the use of an interferometer.
[1] D. Hunger et al 2010 New J. Phys. 12 065038