Near-field optical manipulation with cavity enhanced evanescent fields

Peter J. Reece; Veneranda Garcés-Chávez; Kishan Dholakia

doi:10.1117/12.660814

9 February 2006 Near-field optical manipulation with cavity enhanced evanescent fields

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

Proceedings Volume 6131, Nanomanipulation with Light II; 61310M (2006) https://doi.org/10.1117/12.660814
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

In the following paper we show that near-field optical manipulation can be greatly increased through the use of cavity enhanced evanescent fields. This approach utilises a resonant dielectric structure and a prism coupler to produce Fabry- Perot like cavity modes at a dielectric-fluid interface, which can be utilised in optical manipulation. Using this structure we show a ten-times increase in the optical interaction of micrometer-sized colloids compared with the standard evanescent wave configuration. In addition, stable accumulation and ordering of large-scale arrays of colloids is demonstrated using two counter propagating cavity enhanced evanescent fields. We believe that this technique has considerable scope for promoting the role of near-field optical manipulation at the nanometer scale.

Citation Download Citation

Peter J. Reece, Veneranda Garcés-Chávez, and Kishan Dholakia "Near-field optical manipulation with cavity enhanced evanescent fields", Proc. SPIE 6131, Nanomanipulation with Light II, 61310M (9 February 2006); https://doi.org/10.1117/12.660814

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