Maccalli, Stefania, Pisano, Giampaolo ORCID: https://orcid.org/0000-0003-4302-5681, Colafrancesco, Sergio, Maffei, Bruno, Richard Ng, Ming Wah and Gray, Malcolm
2013.
q-plate for millimeter-wave orbital angular momentum manipulation.
Applied Optics
52
(4)
, pp. 635-639.
10.1364/AO.52.000635
|
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.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QB Astronomy |
| Publisher: | The Optical Society |
| ISSN: | 00036935 |
| Last Modified: | 27 Oct 2022 08:28 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/62427 |
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