TY - GEN
T1 - Photothermal Meta-surface Absorber with Ultra-low Profile Designed for Terahertz Micro-bolometer
AU - Zhu, Hailiang
AU - Wang, Kai
AU - Liu, Ganyu
AU - Qiu, Yuwei
AU - Mou, Jinchao
AU - Wei, Gao
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - This paper proposes a broadband terahertz meta-surface absorber which is designed to be the radiation coupling module of terahertz micro-bolometer. The unit cell of proposed compound meta-surface consists of several basic square unit cells, specifically, 36 basic square unit cells of three different sizes are arranged in an array, perform chessboard-like layout to form a compound unit cell. Simulated absorbing rate of the proposed meta-surface absorber is higher than 80% from 4.46 to 5.76THz (25.4% fractional bandwidth) with a thickness of merely 1.1μm (0.018λ). Since the symmetrical layout of compound unit cell, the absorbing rate keeps stable for incidence with different polarization angles. Moreover, the photothermal response is 8.5Kmm2/W by multi-physics simulation, which shows great potential to improve the terahertz micro-bolometer.
AB - This paper proposes a broadband terahertz meta-surface absorber which is designed to be the radiation coupling module of terahertz micro-bolometer. The unit cell of proposed compound meta-surface consists of several basic square unit cells, specifically, 36 basic square unit cells of three different sizes are arranged in an array, perform chessboard-like layout to form a compound unit cell. Simulated absorbing rate of the proposed meta-surface absorber is higher than 80% from 4.46 to 5.76THz (25.4% fractional bandwidth) with a thickness of merely 1.1μm (0.018λ). Since the symmetrical layout of compound unit cell, the absorbing rate keeps stable for incidence with different polarization angles. Moreover, the photothermal response is 8.5Kmm2/W by multi-physics simulation, which shows great potential to improve the terahertz micro-bolometer.
UR - https://www.scopus.com/pages/publications/85139768108
U2 - 10.1109/AP-S/USNC-URSI47032.2022.9886824
DO - 10.1109/AP-S/USNC-URSI47032.2022.9886824
M3 - 会议稿件
AN - SCOPUS:85139768108
T3 - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
SP - 1098
EP - 1099
BT - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022
Y2 - 10 July 2022 through 15 July 2022
ER -