Cavity-enhanced optical bottle beam as a mechanical amplifier

T Freegarde, K Dholakia

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

We analyze the resonant cavity enhancement of a hollow "optical bottle beam" for the dipole-force trapping of dark-field-seeking species. We first improve upon the basic bottle beam by adding further Laguerre-Gaussian components to deepen the confining potential. Each of these components itself corresponds to a superposition of transverse cavity modes, which are then enhanced simultaneously in a confocal cavity to produce a deep optical trap needing only a modest incident power. The response of the trapping field to displacement of the cavity mirrors offers an unusual form of mechanical amplifier in which the Gouy phase shift produces an optical Vernier scale between the Laguerre-Gaussian beam components.

Original languageEnglish
Article number013413
Number of pages8
JournalPhysical Review. A, Atomic, molecular, and optical physics
Volume66
Issue number1
DOIs
Publication statusPublished - Jul 2002

Keywords

  • HOLLOW LASER-BEAM
  • DIPOLE TRAP
  • NEUTRAL ATOMS
  • COLD ATOMS
  • LIGHT
  • MODES
  • LONG

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