[1] Daniel M. A terahertz modulator[J]. Nature, 444, 560-561(2006).

[2] Tonouchi M. Cutting-edge terahertz technology[J]. Nature Photonics, 1, 97-105(2007).

[3] Liu H X, Yao J Q, Wang Y Y et al. Review of THz near-field imaging[J]. Journal of Infrared and Millimeter Waves, 35, 300-309(2016).

[4] Yao J L, Ma J N, Zhao J H et al. Corneal hydration assessment indicator based on terahertz time domain spectroscopy[J]. Biomedical Optics Express, 11, 2073-2084(2020).

[5] Guo L T, Mu K J, Deng C et al. Terahertz spectroscopy and imaging[J]. Infrared and Laser Engineering, 42, 51-56(2013).

[6] Lu M H, Shen J L, Li N et al. Detection and identification of illicit drugs using terahertz imaging[J]. Journal of Applied Physics, 100, 103104(2006).

[7] Fitzgerald A J, Cole B E, Taday P F. Nondestructive analysis of tablet coating thicknesses using terahertz pulsed imaging[J]. Journal of Pharmaceutical Sciences, 94, 177-183(2005).

[8] Elayan H, Amin O, Shubair R M et al. Terahertz communication: the opportunities of wireless technology beyond 5G[C](2018).

[9] Bhattacharya A, Rivas J G. Full vectorial mapping of the complex electric near-fields of THz resonators[J]. APL Photonics, 1, 086103(2016).

[10] Zhang Z L, Qi P F, Guo L J et al. Review on super-resolution near-field terahertz imaging methods[J]. Acta Optica Sinica, 43, 0600001(2023).

[11] Wu N N, Zhong Y, Liu H T. Superresolving measurement of the metallic nanogap beyond the aperture size of the SNOM probe[J]. Acta Photonica Sinica, 49, 0512001(2020).

[12] Cao B H, Zhang Y M, Fan M B et al. Research progress of terahertz super-resolution imaging[J]. Chinese Optics, 15, 405-417(2022).

[13] Hunsche S, Koch M, Brener I et al. THz near-field imaging[J]. Optics Communications, 150, 22-26(1998).

[14] Klein N, Lahl P, Poppe U et al. A metal-dielectric antenna for terahertz near-field imaging[J]. Journal of Applied Physics, 98, 014910(2005).

[15] Berta M, Kužel P, Kadlec F. Study of responsiveness of near-field terahertz imaging probes[J]. Journal of Physics D: Applied Physics, 42, 155501(2009).

[16] Mitrofanov O, Renaud C C, Seeds A J. Terahertz probe for spectroscopy of sub-wavelength objects[J]. Optics Express, 20, 6197-6902(2012).

[17] Wang N, Zhang X X, Liang J E et al. Novel configuration of aperture-type terahertz near-field imaging probe[J]. Journal of Physics D: Applied Physics, 53, 295102(2020).

[18] Wang N, Chang T Y, Cui H L. Aperture-type terahertz near-field imaging with a cylindrical frustum-shaped plastic probe[J]. Applied Optics, 60, 6308-6312(2021).

[19] Liu S C, Vardeny Z V, Nahata A. Concentration of broadband terahertz radiation using a periodic array of conically tapered apertures[J]. Optics Express, 21, 12363-12372(2013).

[20] Ito T, Matsuura Y, Miyagi M et al. Flexible terahertz fiber optics with low bend-induced losses[J]. Journal of the Optical Society of America B, 24, 1230-1235(2007).

[21] Liu S C, Mitrofanov O, Nahata A. Near-field terahertz imaging using sub-wavelength apertures without cutoff[J]. Optics Express, 24, 2728-2736(2016).

[22] Rusina A, Durach M, Nelson K A et al. Nanoconcentration of terahertz radiation in plasmonic waveguides[J]. Optics Express, 16, 18576-18589(2008).