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Optics Letters

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  • Vol. 36, Iss. 7 — Apr. 1, 2011
  • pp: 1209–1211

Circular grating coupler for creating focused azimuthally and radially polarized beams

Christopher R. Doerr and Lawrence L. Buhl  »View Author Affiliations


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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