Rostock 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics III
Q 58.28: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Atrium Informatik
High-reflectivity AlGaAs-based optomechanical devices — •Sushanth Kini M1, Shu Min Wang2, Jamie Fitzgerald3, Philippe Tassin3, and Witlef Wieczorek1 — 1Quantum Technology Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, Sweden — 2Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, Gothenburg, Sweden — 3Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
A major challenge in the field of optomechanics remains accessing a strong interaction on the level of single quanta between light and mechanical motion, which would, for example, allow for the non-destructive detection of single photons. The concept of multi-element optomechanics has been proposed to reach the necessary single photon strong coupling regime. In the present work, we use mechanical devices in an AlGaAs heterostructure to realise this concept. We show initial results on simulation and fabrication of free-free-type mechanical resonators, which minimize undesired clamping loss and thus, realise large mechanical quality factors. Additionally, the mechanical resonator is patterned with a photonic crystal array that results in an out-of-plane reflectivity close to unity. We present simulation and measurement results thereof. Our device concept should allow for a fully integrated realization of multi-element optomechanical system in the near future.