Light-assisted templated self assembly using photonic crystal slabs

Camilo A. Mejía; Eric Jaquay; Luis Javier Martínez; Avik Dutt; Michelle L. Povinelli

doi:10.1117/12.894351

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9 September 2011 Light-assisted templated self assembly using photonic crystal slabs

Camilo A. Mejía, Eric Jaquay, Luis Javier Martínez, Avik Dutt, Michelle L. Povinelli

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Proceedings Volume 8097, Optical Trapping and Optical Micromanipulation VIII; 809717 (2011) https://doi.org/10.1117/12.894351
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

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.

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Camilo A. Mejía, Eric Jaquay, Luis Javier Martínez, Avik Dutt, and Michelle L. Povinelli "Light-assisted templated self assembly using photonic crystal slabs", Proc. SPIE 8097, Optical Trapping and Optical Micromanipulation VIII, 809717 (9 September 2011); https://doi.org/10.1117/12.894351

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