Cavity-enhanced optical bottle beam as a mechanical amplifier

Tim Freegarde, Kishan Dholakia

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


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
Pages (from-to)134131-134138
Number of pages8
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 2002 Jul

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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