Laser-induced rotation and cooling of a trapped microgyroscope in vacuum

Yoshihiko Arita, Michael Mazilu, Kishan Dholakia

Research output: Contribution to journalArticle

160 Citations (Scopus)

Abstract

Quantum state preparation of mesoscopic objects is a powerful playground for the elucidation of many physical principles. The field of cavity optomechanics aims to create these states through laser cooling and by minimizing state decoherence. Here we demonstrate simultaneous optical trapping and rotation of a birefringent microparticle in vacuum using a circularly polarized trapping laser beam - a microgyroscope. We show stable rotation rates up to 5 MHz. Coupling between the rotational and translational degrees of freedom of the trapped microgyroscope leads to the observation of positional stabilization in effect cooling the particle to 40 K. We attribute this cooling to the interaction between the gyroscopic directional stabilization and the optical trapping field.

Original languageEnglish
Article number2374
JournalNature communications
Volume4
DOIs
Publication statusPublished - 2013 Sep 9

Fingerprint

Optical Tweezers
Vacuum
Lasers
Stabilization
trapping
Laser cooling
Cooling
Optical Rotation
cooling
vacuum
stabilization
lasers
Laser beams
laser cooling
Observation
microparticles
degrees of freedom
laser beams
preparation
cavities

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

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Laser-induced rotation and cooling of a trapped microgyroscope in vacuum. / Arita, Yoshihiko; Mazilu, Michael; Dholakia, Kishan.

In: Nature communications, Vol. 4, 2374, 09.09.2013.

Research output: Contribution to journalArticle

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