[1] Ferguson B, Zhang X C. Materials for terahertz science and technology[J]. Nature Materials, 1, 26-33(2002).

[2] Lee Y S[M]. Principles of terahertz science and technology(2009).

[3] Dai J M, Liu J L, Zhang X C. Terahertz wave air photonics: terahertz wave generation and detection with laser-induced gas plasma[J]. IEEE Journal of Selected Topics in Quantum Electronics, 17, 183-190(2011).

[4] Plusquellic D F, Siegrist K, Heilweil E J et al. Applications of terahertz spectroscopy in biosystems[J]. ChemPhysChem, 8, 2412-2431(2007).

[5] Fitch M J, Leahy-Hoppa M R, Ott E W et al. Molecular absorption cross-section and absolute absorptivity in the THz frequency range for the explosives TNT, RDX, HMX, and PETN[J]. Chemical Physics Letters, 443, 284-288(2007).

[6] You C W, Lu C, Wang T Y et al. Method for defect contour extraction in terahertz non-destructive testing conducted with a raster-scan THz imaging system[J]. Applied Optics, 57, 4884-4889(2018).

[7] Ferguson B, Zhang X C. Materials for terahertz science and technology[J]. Nature Materials, 1, 26-33(2002).

[8] Akyildiz I F, Han C, Hu Z et al. Terahertz band communication: An old problem revisited and research directions for the next decade[J]. IEEE Transactions on Communications, 70, 4250-4285(2022).

[9] Darrow J T, Zhang X C, Auston D H. Power scaling of large‐aperture photoconducting antennas[J]. Applied Physics Letters, 58, 25-27(1991).

[10] Ma C, Yang L, Dong C et al. An experimental study on LT-GaAs photoconductive antenna breakdown mechanism[J]. IEEE Transactions on Electron Devices, 65, 1043-1047(2018).

[11] Zhang Z Z, Fu Z L, Wang C et al. Research on terahertz quantum well photodetector[J]. Journal of Infrared and Millimeter Waves, 41, 103-109(2022).

[12] Bulgarevich D S, Watanabe M, Shiwa M et al. Polarization-variable emitter for terahertz time-domain spectroscopy[J]. Optics Express, 24, 27160-27165(2016).

[13] Mosley C D W, Staniforth M. Scalable interdigitated photoconductive emitters for the electrical modulation of Terahertz beams with arbitrary linear polarization[J]. AIP Advances, 9(2019).

[14] Warmowska D, Abdalmalak K A, Muñoz L E G et al. High-gain, circularly-polarized THz antenna with proper modeling of structures with thin metallic walls[J]. IEEE Access, 8, 125223-125233(2020).

[15] Shang T, Jin Z, Li C H et al. Influence of inductance of photo-conductive terahertz source circuit on its radiation characteristics[J]. Journal of Infrared and Millimeter Waves, 41, 751-755(2022).

[16] Bundel P, Wu G B, Chen B J et al. Wideband circular polarizer for a photoconductive antenna[J]. Optics Letters, 48, 3223-3226(2023).

[17] Bai, J, Chen, T, Wang, S et al. Ultra-broadband and high-efficiency terahertz reflective metamaterials polarization converter[J]. Appl. Phys. A, 129, 610(2023).

[18] Shi W, Jin Z, Zhang L et al. A photoconductive terahertz radiation source generating terahertz waves with arbitrary polarization direction[J]. Laser & Optoelectronics Progress, 60, 1811022(2023).

[19] Li H Y, Zhou S M, Li J et al. Analysis of the Drude model in metallic films[J]. Applied Optics, 40, 6307-6311(2001).

[20] Huggard P G, Cluff J A, Moore G P et al. Drude conductivity of highly doped GaAs at terahertz frequencies[J]. Journal of Applied Physics, 87, 2382-2385(2000).