[1] [1] Hu Weidong, Ji Jinjia, Liu Ruiting, et al. Terahertz atmosphere remote sensing[J]. Chinese Optics, 2017, 10(5): 656-665. (in Chinese)

[2] [2] Wang Maorong, Zhong Kai, Liu Chu, et al. Radar cross section measurement at 3.11 THz based on terahertz gas lasers [J]. Infrared and Laser Engineering, 2018, 47(2): 0225001. (in Chinese)

[3] [3] Dikmelik Y, Spicer J B, Fitch M J, et al. Effects of surface roughness on reflection spectra obtained by terahertz time-domain spectroscopy[J]. Optics Letters, 2006, 31(24): 3653-3655.

[4] [4] Ortolani M, Lee J S, Schade U. Surface roughness effects on the terahertz reflectance of pure explosive materials[J]. Applied Physics Letters, 2008, 93(8): 081906.

[5] [5] Jagannathan A, Gatesman A J, Giles R H. Characterization of roughness parameters of metallic surfaces using terahertz reflection spectra[J]. Optics Letters, 2009, 34(13): 1927-1929.

[6] [6] Cacciari I, Siano S. THz characterization of corroded metals: The influence of surface roughness[C]//18th Italian National Conference on Photonic Technologies (Fotonica 2016), 2016: 1-4.

[7] [7] Yang Yang, Liu Bing, Zhang Jingshui, et al. Influence of rough metal surface on the scattering properties of terahertz frequency[J]. Laser & Infrared, 2014, 44(8): 922-926. (in Chinese)

[8] [8] Chen Gang, Dang Hongxing, Tan Xiaomin, et al. Scattering properties of electromagnetic waves from randomly oriented rough metal plate in the lower terahertz region[J]. Journal of Radars, 2018, 7(1): 75-82. (in Chinese)

[9] [9] Ge Chengxian, Wu Zhensen, Bai Jing, et al. Difference field scattering properties between multiple inlaid redundant particles and slightly rough optical surface[J]. Optics & Precision Engineering, 2018, 26(2): 268-275. (in Chinese)

[10] [10] Davies H. The reflection of electromagnetic waves from a rough surface[J]. Proceedings of the IEE-Part IV: Institution Monographs, 1954, 101(7): 209-214.

[11] [11] Bennett H E, Porteus J O. Relation between surface roughness and specular reflectance at normal incidence[J]. Journal of the Optical Society of America, 1961, 51(2): 123-129.

[12] [12] Huang Kuntao, Fang Fengzhou, Gong Hu. Study on the optical characteristics of the surface microscopic topology generated by ultra-precision turning[J]. Optics & Precision Engineering, 2013, 21(1): 101-107. (in Chinese)

[13] [13] Liu C, Zhong K, Shi J, et al. Accurate measurement of terahertz spectrum and target velocity based on Michelson interferometry[J]. Infrared and Laser Engineering, 2018, 47(11): 1117006. (in Chinese)

[14] [14] Gatesman A J, Giles R H, Waldman J. High-precision reflectometer for submillimeter wavelengths[J]. JOSA B, 1995, 12(2): 212-219.

[15] [15] Guo S B, Zhong K, Wang M R, et al. Theoretical and experimental study on broadband terahertz atmospheric transmission characteristics[J]. Chinese Physics B, 2017, 26(1): 019501.