Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 15: Optomechanics
Q 15.2: Talk
Tuesday, March 12, 2024, 11:30–11:45, HS 1015
Levitated optomechanics in microgravity — •Govindarajan Prakash1, Sven Herrmann1, Claus Lämmerzahl1, and Christian Vogt2 — 1ZARM (Zentrum für Angewandte Raumfahrttechnologie und Mikrogravitation), Universität Bremen — 2BIAS (Bremer Institut für angewandte Strahltechnik GmbH)
Optomechanical levitation of nanoparticles provides a promising platform to perform tests with macroscopic particles on the interface between quantum and classical regimes. Schemes of such tests involve optical trapping, feedback cooling, and release and retrapping of nanoparticles. Here, we present how this allows us to perform force sensing of the order of attonewtons in microgravity conditions at the drop towers of ZARM in Bremen using silica nanoparticles. We present our progress thus far where we discuss first results from microgravity and hypergravity conditions.
Keywords: levitated optomechanics; microgravity; force sensing; drop tower