학술논문
Active Control of Terahertz Waves by VO2 metamaterial
Document Type
Conference
Author
Source
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2019 44th International Conference on. :1-1 Sep, 2019
Subject
Language
ISSN
2162-2035
Abstract
Recently, with the development of artificial electromagnetic medium, metamaterials offer people the ability to subjectively control electromagnetic wave and provide a promising solution for scarce terahertz (THz) functional devices. In this paper, we describe a method for the active control of terahertz (THz) waves using vanadium dioxide (VO 2 )-embedded hybrid metamaterials (MMs). VO 2 undergoes an insulator-metal phase transition at around 68°C, causing its conductivity to change by five orders of magnitude. Our MM shows that it can realize mode switching via the VO 2 pads with high conductivity in the conduction state and high dynamic conductivity across the phase transition.