Electrically triggered dual-band tunable terahertz metamaterial band-pass filter based on Si3N4–VO2

Electrically triggered dual-band tunable terahertz metamaterial band-pass filter based on Si₃N₄–VO₂–Si₃N₄ sandwich

Zhao Shuai¹, Hu Fangrong^{1, †}, Xu Xinlong², Jiang Mingzhu¹, Zhang Wentao¹, Yin Shan¹, Jiang Wenying¹

Electrical–thermal characteristics. (a) The relationship between peak temperature of the device and the applied currents. (b) Temperature distributions on VO₂ film for I = 0.2 A. (c) Temperature distributions on four unit cells for I = 0.2 A. (d) Temperature distributions on the cross section of a unit cell for I = 0.2 A.