Using a Laguerre-Gaussian beam to trap and cool the rotational motion of a mirror

M. Bhattacharya, P. Meystre

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

We show theoretically that it is possible to trap and cool the rotational motion of a macroscopic mirror made of a perfectly reflecting spiral phase element using orbital angular momentum transfer from a Laguerre-Gaussian optical field. This technique offers a promising route to the placement of the rotor in its quantum mechanical ground state in the presence of thermal noise. It also opens up the possibility of simultaneously cooling a vibrational mode of the same mirror. Lastly, the proposed design may serve as a sensitive torsional balance in the quantum regime.

Original languageEnglish (US)
Article number153603
JournalPhysical review letters
Volume99
Issue number15
DOIs
StatePublished - Oct 10 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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