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Tailored leaky plasmon waves from a subwavelength aperture for optical particle trapping on a chip |
JOSA B, Vol. 28, Issue 4, pp. 602-607 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000602
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Abstract
Optical forces available on a chip that possess features of strong trapping at the subwavelength scale, in a coplanar geometry, and at specific and selective locations portend many useful applications. We demonstrate here a two-pronged approach to accomplish this. First, the plasmon fields emanating from a subwavelength aperture are manipulated so that they leak maximally to the sides on a surface through the use of tailored corrugations. Second, the location of secondary corrugation at some distance permits reflection of these leaky waves, which, with the coherence property of light used, generate optical standing wave fields capable of strong optical trapping. The linear optical forces generated with this scheme are presented here.
© 2011 Optical Society of America
OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(240.6680) Optics at surfaces : Surface plasmons
(240.3990) Optics at surfaces : Micro-optical devices
ToC Category:
Atomic and Molecular Physics
History
Original Manuscript: September 21, 2010
Revised Manuscript: January 4, 2011
Manuscript Accepted: January 12, 2011
Published: March 2, 2011
Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics
Citation
M. S. Muradoglu, Tuck Wah Ng, Adrian Neild, and Ian Gralinski, "Tailored leaky plasmon waves from a subwavelength aperture for optical particle trapping on a chip," J. Opt. Soc. Am. B 28, 602-607 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-4-602
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