Tunable terahertz metasurface resonator based on phase transition of VO2 crosses

huan liu; Lin Li; Kun Zhang; Jing Ma; Gui-Min Chen; Ya-Xian Fan; Zhi-Yong Tao

doi:10.1117/12.2585895

2 December 2020 Tunable terahertz metasurface resonator based on phase transition of VO₂ crosses

huan liu, Lin Li, Kun Zhang, Jing Ma, Gui-Min Chen, Ya-Xian Fan, Zhi-Yong Tao

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 1171710 (2020) https://doi.org/10.1117/12.2585895
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

Based on the insulator to metal transition (IMT) characteristics of vanadium dioxide (VO₂), a highly active tunable terahertz (THz) metasurface resonator patterned VO₂ cross structures is proposed. The simulation results show that the transmission of the proposed structure at low temperature is higher than 0.7 because of the VO₂ in its insulation phase. With the increasing temperature, a strong transmission dip appears at 0.76 THz due to the metal phase of VO₂, which indicates the onset of a new resonant mode. The maximum tunable range of transmission for THz wave is 0.06-0.86. Simultaneously, we also demonstrate that the resonant responses of the heating and cooling processes are quite different and the heating process is more sensitive. The transition temperature is close to room temperature and the device can achieve good modulation effect on both TE and TM waves. The TE and TM mode resonances are selective by altering the cross arms, which is almost impossible for other THz devices. So, the resonator can greatly promote practical applications of THz functional devices such as filters, sensors, modulators, and switches.

Citation Download Citation

huan liu, Lin Li, Kun Zhang, Jing Ma, Gui-Min Chen, Ya-Xian Fan, and Zhi-Yong Tao "Tunable terahertz metasurface resonator based on phase transition of VO₂ crosses", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 1171710 (2 December 2020); https://doi.org/10.1117/12.2585895

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available