Open AccessAll-Dielectric Optically Tunable Metasurface for Terahertz Phase and Amplitude Modulation
Author(s) -
Sergey Lepeshov,
Andrei Gorodetsky
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1461/1/012203
Subject(s) - terahertz radiation , optics , amplitude modulation , dielectric , phase (matter) , materials science , modulation (music) , amplitude , optoelectronics , broadband , realization (probability) , transmittance , phase modulation , enhanced data rates for gsm evolution , signal (programming language) , frequency modulation , physics , telecommunications , radio frequency , computer science , phase noise , acoustics , statistics , mathematics , quantum mechanics , programming language
The novel concept of an all-dielectric terahertz metasurface for amplitude and phase modulation is proposed. The results of numerical simulation of transmittance and phase shift of a broadband input THz signal are presented. The change of the amplitude and phase characteristics of the metasurface under the laser irradiation of the metasurface is shown. The phase modulation from 0 to π/2 is numerically observed. Our results pave the way for experimental realization of metasurface-based THz tunable modulators for cutting edge THz devices.