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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 4 — Feb. 1, 2013
  • pp: 635–639

q-plate for millimeter-wave orbital angular momentum manipulation

Stefania Maccalli, Giampaolo Pisano, Sergio Colafrancesco, Bruno Maffei, Ming Wah Richard Ng, and Malcolm Gray  »View Author Affiliations


Applied Optics, Vol. 52, Issue 4, pp. 635-639 (2013)
http://dx.doi.org/10.1364/AO.52.000635


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Abstract

q-plates are quasi-optical devices specifically designed to generate and detect the orbital angular momentum states of the light. It is possible to produce q-plates working at millimeter wavelengths by using a well-known and cheap manufacturing technique. The technique consists of creating inhomogeneous, artificial birefringent materials by machining grooves with specific geometries into normal dielectric materials. In this work, a q-plate working around 100 GHz has been designed, manufactured, and tested using a vector network analyzer. The experimental data validate the modeled intensity and phase for the transformation of an incident Gaussian beam.

© 2013 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(050.4865) Diffraction and gratings : Optical vortices
(160.2710) Materials : Inhomogeneous optical media

ToC Category:
Materials

History
Original Manuscript: September 21, 2012
Revised Manuscript: December 7, 2012
Manuscript Accepted: December 18, 2012
Published: January 30, 2013

Citation
Stefania Maccalli, Giampaolo Pisano, Sergio Colafrancesco, Bruno Maffei, Ming Wah Richard Ng, and Malcolm Gray, "q-plate for millimeter-wave orbital angular momentum manipulation," Appl. Opt. 52, 635-639 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-4-635

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