Subwavelength micropolarizer in a gold film for visible light
Date
01/07/2016Grant ID
EP/L017008/1
337508 337508
EP/K031252/1
Metadata
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Abstract
We have designed and fabricated a 100 μm x 100 μm four-sector binary subwavelength reflecting polarization microconverter in a gold film. Using finite-difference time-domain-aided numerical simulations and experiments, the micropolarizer was shown to convert an incident linearly polarized Gaussian beam of wavelength 532 nm into an azimuthally polarized beam. Conditions for generating on-axis regions of nonzero intensity when using propagating optical vortices with different initial polarization were deduced. By putting a spiral phase plate into an azimuthally polarized beam, the intensity pattern was shown to change from diffraction rings to a central peak.
Citation
Kotlyar , V V , Stafeev , S S , Kotlyar , M V , Nalimov , A G & O'Faolain , L 2016 , ' Subwavelength micropolarizer in a gold film for visible light ' , Applied Optics , vol. 55 , no. 19 , pp. 5025-5032 . https://doi.org/10.1364/AO.55.005025
Publication
Applied Optics
Status
Peer reviewed
ISSN
1559-128XType
Journal article
Rights
© 2016 Optical Society of America. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1364/AO.55.005025
Description
Engineering and Physical Sciences Research Council (EPSRC) (EP/L017008/1); European Research Council (337508); Russian Foundation for Basic Research (RFBR) (14-07-97039, 14-29-07133, 15-07-01174, 15-37-20723, 16-07-00990, 16-29-11698); Ministry of Education and Science of the Russian Federation (MK-9019.2016.2).Collections
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