All in a spin: rotational dynamics of vacuum trapped microparticles

Kishan Dholakia

doi:10.1117/12.2583026

5 March 2021 All in a spin: rotational dynamics of vacuum trapped microparticles

Kishan Dholakia

Proceedings Volume 11701, Complex Light and Optical Forces XV; 1170118 (2021) https://doi.org/10.1117/12.2583026
Event: SPIE OPTO, 2021, Online Only

Abstract

Trapping microparticles in vacuum has led to the burgeoning area of levitated optomechanics. Here we will describe recent work on rotating particles in vacuum. This offers a rich playground for dynamics. In particular we describe how we can attain very high rotation rates by spin angular momentum transfer, optical binding of particle sin vacuum. For a single particle stochastic, thermal fluctuations combine with nonconservative optical forces to break detailed balance and produce increasingly coherent, apparently deterministic motion. In turn this leads to the highest Q value ever reported for a vacuum traded microparticle

Conference Presentation

Citation Download Citation

Kishan Dholakia "All in a spin: rotational dynamics of vacuum trapped microparticles", Proc. SPIE 11701, Complex Light and Optical Forces XV, 1170118 (5 March 2021); https://doi.org/10.1117/12.2583026

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