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Proceedings Paper

Light-assisted templated self assembly using photonic crystal slabs
Author(s): Camilo A. Mejía; Eric Jaquay; Luis Javier Martínez; Avik Dutt; Michelle L. Povinelli
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Paper Abstract

We calculate optical forces on colloidal particles over a photonic crystal slab. We show numerically that exciting a guided resonance mode of the slab yields a resonantly-enhanced, attractive optical force. Optical forces in the lateral direction result in a two-dimensionally periodic pattern of stable trapping positions. Trapping patterns can be reconfigured by changing the wavelength or polarization of incident light. We study the dependence of optical forces on particle size, particle dielectric constant, and photonic-crystal slab parameters. Finally, we describe the fabrication and measurement of a photonic crystal slab with a Q ~ 370.

Paper Details

Date Published: 9 September 2011
PDF: 7 pages
Proc. SPIE 8097, Optical Trapping and Optical Micromanipulation VIII, 809717 (9 September 2011); doi: 10.1117/12.894351
Show Author Affiliations
Camilo A. Mejía, The Univ. of Southern California (United States)
Eric Jaquay, The Univ. of Southern California (United States)
Luis Javier Martínez, The Univ. of Southern California (United States)
Avik Dutt, Indian Institute of Technology (India)
Michelle L. Povinelli, The Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 8097:
Optical Trapping and Optical Micromanipulation VIII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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