Self-complementary metasurfaces for designing terahertz deflecting circular-polarization beam splitters

Metasurfaces provide a broad range of functionalities related to wavefront manipulation in different frequency ranges with the advantage of subwavelength thickness. In this work, we numerically and experimentally investigate a terahertz splitter of circularly polarized beams based on a spatially non...

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Published in:Applied physics letters 2021-03, Vol.118 (13)
Main Authors: Kuznetsov, S. A., Lenets, V. A., Tumashov, M. A., Sayanskiy, A. D., Lazorskiy, P. A., Belov, P. A., Baena, J. D., Glybovski, S. B.
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Language:English
Subjects:
Applied physics
Beam splitters
Beams (radiation)
Circular polarization
Design parameters
Frequency ranges
Linear phase
Metasurfaces
Terahertz frequencies
Wave fronts
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cited_by cdi_FETCH-LOGICAL-c327t-e55368bd0b3c1da7fd82413ca1ce00a40245c7d122defa53656cc0a1146fc6693
cites cdi_FETCH-LOGICAL-c327t-e55368bd0b3c1da7fd82413ca1ce00a40245c7d122defa53656cc0a1146fc6693
container_end_page
container_issue 13
container_start_page
container_title Applied physics letters
container_volume 118
creator Kuznetsov, S. A.
Lenets, V. A.
Tumashov, M. A.
Sayanskiy, A. D.
Lazorskiy, P. A.
Belov, P. A.
Baena, J. D.
Glybovski, S. B.
description Metasurfaces provide a broad range of functionalities related to wavefront manipulation in different frequency ranges with the advantage of subwavelength thickness. In this work, we numerically and experimentally investigate a terahertz splitter of circularly polarized beams based on a spatially nonuniform metasurface composed of self-complementary unit cells. When illuminated with circular polarization, the metasurface creates a deflected cross-polarized beam while transmitting a co-polarized beam in the normal direction. Despite the existence of two reflected beams leading to reflective losses, the metasurface is single-layer and is easy to design and fabricate. A required linear phase gradient for the cross-polarized beam can be obtained by adjusting only one design parameter of unit cells.
doi_str_mv 10.1063/5.0042403
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source American Institute of Physics (AIP) Publications; American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Applied physics
Beam splitters
Beams (radiation)
Circular polarization
Design parameters
Frequency ranges
Linear phase
Metasurfaces
Terahertz frequencies
Wave fronts
title Self-complementary metasurfaces for designing terahertz deflecting circular-polarization beam splitters
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