najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-3-339-341najo-606Research ArticlePHYSICSФИЗИКАChiral characteristics of metasurface based on gammadion cross in THz frequency rangeMasyukovM. S.

Kronverkskiy, 49, St. Petersburg, 197101

maxim.masyukov@gmail.comVozianovaA. V.

Kronverkskiy, 49, St. Petersburg, 197101

GrebenchukovA. N.

Kronverkskiy, 49, St. Petersburg, 197101

KhodzitskyM. K.

Kronverkskiy, 49, St. Petersburg, 197101

ITMO UniversityRussian Federation20171108202583339341Copyright © Masyukov M.S., Vozianova A.V., Grebenchukov A.N., Khodzitsky M.K., 20252025Masyukov M.S., Vozianova A.V., Grebenchukov A.N., Khodzitsky M.K.Masyukov M.S., Vozianova A.V., Grebenchukov A.N., Khodzitsky M.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/606

The chiral properties of a metasurface made of 2-D array of twisted gammadion crosses was studied at frequencies ranging from 0.1–0.12 THz. The influences of unit cell design on the optical activity and the ellipticity of the metasurface were revealed. The maximal values of ellipticity and polarization azimuth rotation angle were obtained for the gammadion crosses with petals in the form of the truncated circles. The changing of the semi axes’ relation of gammadion cross ellipses allows tuning of the operational frequency and creation of a multiband polarizer.

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The authors declare that there are no conflicts of interest present.