Dresden 2026 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 32: Nanomechanical systems (joint session HL/TT)
TT 32.8: Talk
Tuesday, March 10, 2026, 12:00–12:15, POT/0051
Cavity optomechanics with van der Waals materials — •Aloysius Farrel1,3, Lukas Schleicher1,3, Irene Sánchez Arribas1,3, Leonard Geilen2,3, Alexander Musta2,3, Alexander Holleitner2,3, and Eva Weig1,3 — 1Chair of Nano and Quantum Sensors, TU Munich, Germany — 2Walter Schottky Institute, TU Munich, Germany — 3Munich Center for Quantum Science and Technology (MCQST), Munich, Germany
Freely suspended two-dimensional materials are promising platforms for hybrid quantum systems that combine mechanical, optical, and electronic properties. Coupling the optical and mechanical modes of the resonators would be the first step towards such hybrid quantum system.
Here, we present studies of the mechanical resonators with van der Waals materials, such as hBN, on a SiN membrane. We map the spatial mechanical modes of the freestanding and supported 2D materials. Furthermore, we observe an optical nonlinearity in our high-finesse fiber optic cavity setup, which could couple to the mechanical modes. This result helps us understand the optomechanical coupling of the system and leads the way for a hybrid quantum device by incorporating quantum emitters in the system.
Keywords: Optomechanics; Optical cavity; Nanodrums; Suspended van der Waals materials; Hybrid quantum systems