Revolving interference patterns for the rotation of optically trapped particles

M. P. MacDonald, K. Volke-Sepulveda, L. Paterson, J. Arlt, W. Sibbett, K. Dholakia

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

Optically trapped objects are rotated controllably in the interference pattern between a Laguerre-Gaussian (LG) beam and a Gaussian beam. In this work the interference pattern is analysed and its properties as it propagates are modelled, showing the important role played by the Guoy-phase of the two interfering beams. An analysis of producing controlled rotation of the interference pattern using a glass plate is presented demonstrating the ease with which the rotation can be controlled.

Original languageEnglish
Pages (from-to)21-28
Number of pages8
JournalOptics Communications
Volume201
Issue number1-3
Early online date27 Nov 2001
DOIs
Publication statusPublished - 1 Jan 2002

Keywords

  • Interference patterns
  • Laguerre-Gaussian beams
  • Micro-particle rotation
  • Optical manipulation
  • Optical trapping

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