SAMOP 2023 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 59: Poster IV

Q 59.53: Poster

Thursday, March 9, 2023, 16:30–19:00, Empore Lichthof

Levitated nanoparticles in microgravity — •Govindarajan Prakash, Vincent Hock, Marian Woltmann, Sven Hermann, Claus Lämmerzahl, and Christian Vogt — University of Bremen, ZARM (Centre for Applied Space Technology and Microgravity)

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 aim to discuss 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 the progress thus far in our preliminary aim of building a force sensor that might be suitable for usage in space-based environments for dark matter searches and the like