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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 36, Iss. 3 — Feb. 1, 2011
  • pp: 409–411

Quadrant detector calibration for vortex beams

N. Hermosa, A. Aiello, and J. P. Woerdman  »View Author Affiliations


Optics Letters, Vol. 36, Issue 3, pp. 409-411 (2011)
http://dx.doi.org/10.1364/OL.36.000409


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Abstract

This Letter reports an experimental and theoretical study of the response of a quadrant detector (QD) to an incident vortex beam, specifically a Laguerre–Gaussian (LG) beam. We have found that the LG beam response depends on the vorticity index . We compare LG beams with hard-ringed beams and find that at higher values, the QD response to LG beams can be approximated by its response to hard-ringed beams. Our findings are important in view of the increasing interest in optical vortex beams.

© 2011 Optical Society of America

OCIS Codes
(040.5160) Detectors : Photodetectors
(120.4640) Instrumentation, measurement, and metrology : Optical instruments

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: November 18, 2010
Revised Manuscript: December 15, 2010
Manuscript Accepted: December 16, 2010
Published: January 31, 2011

Citation
N. Hermosa, A. Aiello, and J. P. Woerdman, "Quadrant detector calibration for vortex beams," Opt. Lett. 36, 409-411 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-3-409

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