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Design and characterization of a dielectric q-plate for millimetre-wave photon orbital angular momentum applications

Maccalli, S., Pisano, Giampaolo, Ng, M. W. R., Maffei, B., Gray, Malcolm and Colafrancesco, S. 2012. Design and characterization of a dielectric q-plate for millimetre-wave photon orbital angular momentum applications. Presented at: PIERS 2012, Kuala Lumpur, Malaysia, 27-30 March 2012. PIERS Proceedings 2012. The Electromagnetics Academy,

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Abstract

We present the design, fabrication and beam pattern characterization of a nylon- made q-plate that generates §2 charged OAM states at millimetre wavelengths. This q-plate is optimized to work around 100 GHz but the same design can be scaled to work at other fre- quencies in the millimetre-wave range. The simple manufacturing method used here allows a cheap and fast q-plate production. The designed plate can create a point defect on the phase front structure of a fundamental Gaussian beam with the associated optical vortex and annular intensity pattern. The q-plate has been experimentally characterized using a millimetre-wave Vector Network Analyzer and beam scanning test set-up.

Item Type: Conference or Workshop Item (Paper)
Date Type: Completion
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: The Electromagnetics Academy
ISBN: 9781934142202
ISSN: 1559-9450
Related URLs:
Last Modified: 04 Jun 2017 06:35
URI: http://orca.cf.ac.uk/id/eprint/62562

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