Metasurfaces based on Au and VO2 for THz applications
V. Kaydashev1 , S. Zhukov,1 M. Kutepov,2 I. Domaratskiy1, A. Slavich1
1Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), Institutskiy Per.9, 141701, Dolgoprudny, Russia
2Laboratory of Nanomaterials, Southern Federal University, 200/1 Stachki Ave., 344090 Rostov-on-Don, Russia
Abstract
Metasurfaces based on VO2 which properties are switchable by using near IR light or local resistive heating are of great interest for novel sub-THz/THz photonic devices including active filters and THz generators. We report on design and study of a hybrid metasurface with narrow resonance in 0.7-1.3 THz range based on Au bow-tie antennas and VO2 for THz switchable devices. Photothermal effect on substrate induced by THz absorption is characterized by recently developed method based on surface acoustic wave phase shift upon heating of YX-128° cut LiNbO3 crystal.
Speaker
Vladimir Kaydashev
Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology (MIPT), Institutskiy Per.9, 141701, Dolgoprudny, Russia
Russia
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