Orbital-angular-momentum transfer to optically levitated microparticles in vacuum

Michael Mazilu, Yoshihiko Arita, Tom Vettenburg, Juan M. Auñón, Ewan M Wright, Kishan Dholakia

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We demonstrate the transfer of orbital angular momentum to an optically levitated microparticle in vacuum. The microparticle is placed within a Laguerre-Gaussian beam and orbits the annular beam profile with increasing angular velocity as the air drag coefficient is reduced. We explore the particle dynamics as a function of the topological charge of the levitating beam. Our results reveal that there is a fundamental limit to the orbital angular momentum that may be transferred to a trapped particle, dependent upon the beam parameters and inertial forces present.

Original languageEnglish (US)
Article number053821
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume94
Issue number5
DOIs
StatePublished - 2016

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microparticles
momentum transfer
angular momentum
orbitals
vacuum
drag coefficients
trapped particles
angular velocity
inertia
orbits
air
profiles

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Orbital-angular-momentum transfer to optically levitated microparticles in vacuum. / Mazilu, Michael; Arita, Yoshihiko; Vettenburg, Tom; Auñón, Juan M.; Wright, Ewan M; Dholakia, Kishan.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 94, No. 5, 053821, 2016.

Research output: Contribution to journalArticle

Mazilu, Michael ; Arita, Yoshihiko ; Vettenburg, Tom ; Auñón, Juan M. ; Wright, Ewan M ; Dholakia, Kishan. / Orbital-angular-momentum transfer to optically levitated microparticles in vacuum. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2016 ; Vol. 94, No. 5.
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