Near-field optical micromanipulation with cavity enhanced evanescent waves

Peter J. Reece, Veneranda Garćs-Chávez, Kishan Dholakia

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

We show that the forces associated with near-field optical micromanipulation can be greatly increased through the use of cavity enhanced evanescent waves. This approach utilizes a resonant dielectric waveguide structure and a prism coupler to produce Fabry-Ṕrot-like cavity modes at a dielectric-fluid interface. Fabricated structures show a ten times enhancement in the optical interaction and optical force for micrometer-sized colloids. In addition, stable accumulation and ordering of large scale arrays of colloids are demonstrated using two counter-propagating cavity enhanced evanescent waves.

Original languageEnglish
Article number221116
JournalApplied Physics Letters
Volume88
Issue number22
DOIs
Publication statusPublished - 2006 May 29

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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