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

S. A. Kuznetsov, V. A. Lenets, M. A. Tumashov, A. D. Sayanskiy, P. A. Lazorskiy, P. A. Belov, J. D. Baena, S. B. Glybovski

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

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.

Язык оригиналаанглийский
Номер статьи131601
ЖурналApplied Physics Letters
Том118
Номер выпуска13
DOI
СостояниеОпубликовано - 29 мар 2021

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  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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