Terahertz Polarization-Resolved Spectra of the Metamaterial Formed by Optimally Shaped Omega Elements on a Silicon Substrate at Oblique Incidence of Waves
Andrew V. Lyakhnovich,
Igor V. Semchenko,
Andrey L. Samofalov,
Maksim A. Podalov,
George V. Sinitsyn,
Alexandr Y. Kravchenko,
Sergei A. Khakhomov
Affiliations
Andrew V. Lyakhnovich
B.I. Stepanov Institute of Physics of NAS, 220072 Minsk, Belarus
Igor V. Semchenko
State Scientific and Production Association “Optics, Optoelectronics and Laser Technology” of NAS, 220072 Minsk, Belarus
Andrey L. Samofalov
Faculty of Physics and Information Technology, Francisk Skorina Gomel State University, 246028 Gomel, Belarus
Maksim A. Podalov
Faculty of Physics and Information Technology, Francisk Skorina Gomel State University, 246028 Gomel, Belarus
George V. Sinitsyn
B.I. Stepanov Institute of Physics of NAS, 220072 Minsk, Belarus
Alexandr Y. Kravchenko
Belarusian Scientific Research and Design Institute of Oil, 246003 Gomel, Belarus
Sergei A. Khakhomov
Faculty of Physics and Information Technology, Francisk Skorina Gomel State University, 246028 Gomel, Belarus
The reflection and transmission spectra of a metamaterial formed by omega-shaped elements with pre-calculated optimal parameters on a silicon substrate have been recorded in the terahertz range at oblique incidence for the s- and p-polarizations of the incident wave. The spectra were interpreted within the dipole radiation theory of electromagnetic waves. Both measurement results and analysis provide evidence supporting the presence of a pronounced polarization anisotropy impact in the reflection and transmission of the metamaterial. The potential of these materials to be utilized in the development of devices that control the polarization properties of THz radiation across a wide spectral range is examined.
