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Circular grating coupler for creating focused azimuthally and radially polarized beams |
Optics Letters, Vol. 36, Issue 7, pp. 1209-1211 (2011)
http://dx.doi.org/10.1364/OL.36.001209
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Abstract
We show a planar optical circuit design that takes light from an input waveguide and creates a focused azimuthally or radially polarized beam emanating from the surface of the substrate. It is implemented in silicon-on-insulator waveguides and does not require any external components to focus the beam. The focal spot size can be subwavelength and is potentially useful for lithography, imaging, optical data storage, optical trapping, optical excitation of molecules, or coupling to optical fibers.
© 2011 Optical Society of America
OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(130.3120) Integrated optics : Integrated optics devices
ToC Category:
Diffraction and Gratings
History
Original Manuscript: January 31, 2011
Revised Manuscript: February 25, 2011
Manuscript Accepted: February 25, 2011
Published: March 28, 2011
Virtual Issues
Vol. 6, Iss. 5 Virtual Journal for Biomedical Optics
Citation
Christopher R. Doerr and Lawrence L. Buhl, "Circular grating coupler for creating focused azimuthally and radially polarized beams," Opt. Lett. 36, 1209-1211 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-7-1209
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