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Proceedings Article

Light-assisted templated self assembly using photonic crystal slabs

[+] Author Affiliations
Camilo A. Mejía, Eric Jaquay, Luis Javier Martínez, Michelle L. Povinelli

The Univ. of Southern California (USA)

Avik Dutt

Indian Institute of Technology (India)

Proc. SPIE 8097, Optical Trapping and Optical Micromanipulation VIII, 809717 (September 09, 2011); doi:10.1117/12.894351
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From Conference Volume 8097

  • Optical Trapping and Optical Micromanipulation VIII
  • San Diego, California, USA | August 21, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

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 (September 09, 2011); doi:10.1117/12.894351; http://dx.doi.org/10.1117/12.894351


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