TY - GEN
T1 - Polarization-independent and broadband thz coherent perfect absorber based on black phosphorus bifacial metasurfaces
AU - Guo, Tianjing
AU - Argyropoulos, Christos
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - This work reports a novel black phosphorus (BP)-based metasurface exhibiting broadband and polarization-insensitive coherent perfect absorption (CPA) at THz frequencies. The proposed design is composed of a thin dielectric layer sandwiched between two BP monolayers patterned in patches. An equivalent microwave circuit model is developed to accurately model and analyze this design. It is shown that CPA can be achieved over a broad bandwidth of 1.5 THz for both TM and TE waves. The broadband and polarization-independent CPA response is achieved due to the ultrathin thickness of the proposed design and the anisotropic dispersive properties of BP. The presented ultrathin and broadband CPA devices can be used as tunable planar THz modulators, detectors, and signal processors.
AB - This work reports a novel black phosphorus (BP)-based metasurface exhibiting broadband and polarization-insensitive coherent perfect absorption (CPA) at THz frequencies. The proposed design is composed of a thin dielectric layer sandwiched between two BP monolayers patterned in patches. An equivalent microwave circuit model is developed to accurately model and analyze this design. It is shown that CPA can be achieved over a broad bandwidth of 1.5 THz for both TM and TE waves. The broadband and polarization-independent CPA response is achieved due to the ultrathin thickness of the proposed design and the anisotropic dispersive properties of BP. The presented ultrathin and broadband CPA devices can be used as tunable planar THz modulators, detectors, and signal processors.
UR - http://www.scopus.com/inward/record.url?scp=85075229367&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075229367&partnerID=8YFLogxK
U2 - 10.1109/APUSNCURSINRSM.2019.8888853
DO - 10.1109/APUSNCURSINRSM.2019.8888853
M3 - Conference contribution
AN - SCOPUS:85075229367
T3 - 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings
SP - 567
EP - 568
BT - 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019
Y2 - 7 July 2019 through 12 July 2019
ER -