Optical binding of two cooled micro-gyroscopes levitated in vacuum
AffiliationUniv Arizona, Coll Opt Sci
MetadataShow full item record
PublisherOPTICAL SOC AMER
CitationYoshihiko Arita, Ewan M. Wright, and Kishan Dholakia, "Optical binding of two cooled micro-gyroscopes levitated in vacuum," Optica 5, 910-917 (2018)
Rights© 2018 Optical Society of America.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractCoupling between mesoscopic particles levitated in vacuum is a prerequisite for the realization of a large-scale array of particles in an underdamped environment as well as potential studies at the classical - quantum interface. Here, we demonstrate for the first time, to the best of our knowledge, optical binding between two rotating microparticles mediated by light scattering in vacuum. We investigate autocorrelations between the two normal modes of oscillation determined by the center-of-mass and the relative positions of the two-particle system. The inter-particle coupling, as a consequence of optical binding, removes the degeneracy of the normal mode frequencies, which is in good agreement with theory. We further demonstrate that the optically bound array of rotating microparticles retains their optical coupling during gyroscopic cooling, and exhibits cooperative motion whose center-of-mass is stabilized.
NoteOpen access journal.
VersionFinal published version
SponsorsEngineering and Physical Sciences Research Council (EPSRC) [EP/030017/1, EP/J01771X/1]