Stochastic dynamics of optically bound matter levitated in vacuum

0544471 - ÚPT 2022 RIV US eng J - Journal Article
Svak, Vojtěch - Flajšmanová, Jana - Chvátal, Lukáš - Šiler, Martin - Jonáš, Alexandr - Ježek, Jan - Simpson, Stephen Hugh - Zemánek, Pavel - Brzobohatý, Oto
Stochastic dynamics of optically bound matter levitated in vacuum.
Optica. Roč. 8, č. 2 (2021), s. 220-229. ISSN 2334-2536. E-ISSN 2334-2536
R&D Projects: GA ČR(CZ) GA18-27546S; GA MŠMT ED0017/01/01; GA MŠMT(CZ) LO1212; GA MŠMT(CZ) EF16_026/0008460
Institutional support: RVO:68081731
Keywords : Levitated optomechanics * optical levitation in vacuum * optical binding * normal-mode splitting * spatial light modulator
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 10.644, year: 2021
Method of publishing: Open access
https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-8-2-220&id=447606

Optically levitated nanoparticles in a vacuum offer a light-matter interface with broad and easy tunability of all key system parameters. However, the majority of previously reported experimental achievements in this area have only dealt with a single levitated object. Here, we demonstrate optical binding between multiple levitated objects confined in cross-polarized counter-propagating laser beams in a vacuum. We characterize the level of interparticle interaction, quantify its nonlinearity for various configurations of the system, and demonstrate its broad tunability. Our methodology for quantitative characterization of optically bound structures is supported by an extensive theoretical description and validated by numerical simulations. We believe the presented results represent a step toward the development of a framework of levitated optomechanics of complex coupled systems with a controlled level of coupling nonlinearity for experimental studies including, for example, mesoscopic entanglement.
Permanent Link: http://hdl.handle.net/11104/0321318