Sympathetic cooling and asymmetric interactions in optical binding

Graham D. Bruce; Yoshihiko Arita; XiaoYong Duan; Ewan M. Wright; Stephen H. Simpson; Pavel Zemánek; Kishan Dholakia

doi:10.1117/12.2650232

17 March 2023 Sympathetic cooling and asymmetric interactions in optical binding

Graham D. Bruce, Yoshihiko Arita, XiaoYong Duan, Ewan M. Wright, Stephen H. Simpson, Pavel Zemánek, Kishan Dholakia

Proceedings Volume PC12436, Complex Light and Optical Forces XVII; PC124360Q (2023) https://doi.org/10.1117/12.2650232
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Optical binding in liquid and in vacuum continues to unveil and enable new physics. We present two results. Firstly, we show how, for particles beyond the Rayleigh limit, surprising asymmetric forces can arise in counter-propagating beams. These can cause particle transport or instability. Secondly, we show how optical binding between two microspheres levitated in vacuum can be used for sympathetic cooling of the centre of mass motions of the spheres to sub-Kelvin temperatures.

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Citation Download Citation

Graham D. Bruce, Yoshihiko Arita, XiaoYong Duan, Ewan M. Wright, Stephen H. Simpson, Pavel Zemánek, and Kishan Dholakia "Sympathetic cooling and asymmetric interactions in optical binding", Proc. SPIE PC12436, Complex Light and Optical Forces XVII, PC124360Q (17 March 2023); https://doi.org/10.1117/12.2650232

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