[1] D M Mittleman. Twenty years of terahertz imaging [Invited]. Opt Express, 26, 9417-9431(2018).

[2] D M Mittleman, R H Jacobsen, M C Nuss. T-ray imaging. IEEE J Sel Top Quantum Electron, 2, 679-692(1996).

[3] H B Liu, H Zhong, N Karpowicz, Y Q Chen, X C Zhang. Terahertz spectroscopy and imaging for defense and security applications. Proc IEEE, 95, 1514-1527(2007).

[4] C Stoik, M Bohn, J Blackshire. Nondestructive evaluation of aircraft composites using reflective terahertz time domain spectroscopy. NDT E Int, 43, 106-115(2010).

[5] F Blanchard, A Doi, T Tanaka, K Tanaka. Real-time, subwavelength terahertz imaging. Annu Rev Mater Res, 43, 237-259(2013).

[6] R H Jacobsen, D M Mittleman, M C Nuss. Chemical recognition of gases and gas mixtures with terahertz waves. Opt Lett, 21, 2011-2013(1996).

[7] E P J Parrott, J A Zeitler. Terahertz time-domain and low-frequency raman spectroscopy of organic materials. Appl Spectrosc, 69, 1-25(2015).

[8] J B Baxter, G W Guglietta. Terahertz spectroscopy. Anal Chem, 83, 4342-4368(2011).

[9] P U Jepsen, D G Cooke, M Koch. Terahertz spectroscopy and imaging-Modern techniques and applications. Laser Photon Rev, 5, 124-166(2011).

[10] Y C Shen, T Lo, P F Taday, B E Cole, W R Tribe et al. Detection and identification of explosives using terahertz pulsed spectroscopic imaging. Appl Phys Lett, 86, 241116(2005).

[11] I Duling, D Zimdars. Revealing hidden defects. Nat Photon, 3, 630-632(2009).

[12] C Jördens, M Koch. Detection of foreign bodies in chocolate with pulsed terahertz spectroscopy. Opt Eng, 47, 037003(2008).

[13] C Jansen, S Wietzke, O Peters, M Scheller, N Vieweg et al. Terahertz imaging: Applications and perspectives. Appl Opt, 49, E48-E57(2010).

[14] Q S Sun, Y Z He, K Liu, S T Fan, E P J Parrott et al. Recent advances in terahertz technology for biomedical applications. Quant Imaging Med Surg, 7, 345-355(2017).

[15] X Yang, X Zhao, K Yang, Y P Liu, Y Liu et al. Biomedical applications of terahertz spectroscopy and imaging. Trends Biotechnol, 34, 810-824(2016).

[16] R Naccache, A Mazhorova, M Clerici, R Piccoli, L K Khorashad et al. Terahertz thermometry: combining hyperspectral imaging and temperature mapping at terahertz frequencies. Laser Photon Rev, 11, 1600342(2017).

[17] C L Koch-Dandolo, T Filtenborg, K Fukunaga, J Skou-Hansen, P U Jepsen. Reflection terahertz time-domain imaging for analysis of an 18th century neoclassical easel painting. Appl Opt, 54, 5123-5129(2015).

[18] E Abraham, A Younus, J C Delagnes, P Mounaix. Non-invasive investigation of art paintings by terahertz imaging. Appl Phys A, 100, 585-590(2010).

[19] J L Dong, A Locquet, M Melis, D S Citrin. Global mapping of stratigraphy of an old-master painting using sparsity-based terahertz reflectometry. Sci Rep, 7, 15098(2017).

[20] https://www.menlosystems.com/products/thz-time-domain-solutions/tera-image-3/.

[21] H Guerboukha, K Nallappan, M Skorobogatiy. Toward real-time terahertz imaging. Adv Opt Photon, 10, 843-938(2018).

[22] A W M Lee, Q Qin, S Kumar, B S Williams, Q Hu. Real-time terahertz imaging over a standoff distance (> 25meters). Appl Phys Lett, 89, 141125(2006).

[23] N Nemoto, N Kanda, R Imai, K Konishi, M Miyoshi et al. High-sensitivity and broadband, real-time terahertz camera incorporating a micro-bolometer array with resonant cavity structure. IEEE Trans Terahertz Sci Technol, 6, 175-182(2016).

[24] J Yang, S C Ruan, M Zhang. Real-time, continuous-wave terahertz imaging by a pyroelectric camera. Chin Opt Lett, 6, 29-31(2008).

[25] Hadi R Al, H Sherry, J Grzyb, Y Zhao, W Förster et al. A 1 k-pixel video camera for 0.7-1.1 terahertz imaging applications in 65-nm CMOS. IEEE J Solid-State Circuits, 47, 2999-3012(2012).

[26] K B Cooper, R J Dengler, N Llombart, B Thomas, G Chattopadhyay et al. THz imaging radar for standoff personnel screening. IEEE Trans Terahertz Sci Technol, 1, 169-182(2011).

[27] S Katletz, M Pfleger, H Pühringer, N Vieweg, B Scherger et al. Efficient terahertz en-face imaging. Opt Express, 19, 23042(2011).

[28] S C Henry, L M Zurk, S Schecklman. Terahertz spectral imaging using correlation processing. IEEE Trans Terahertz Sci Technol, 3, 486-493(2013).

[29] A Ushakov, P Chizhov, V Bukin, A Savel'ev, S Garnov. Broadband in-line terahertz 2D imaging: comparative study with time-of-flight, cross-correlation, and Fourier transform data processing. J Opt Soc Am B, 35, 1159-1164(2018).

[30] S Schumann, C Jansen, M Schwerdtfeger, S Busch, O Peters et al. Spectrum to space transformed fast terahertz imaging. Opt Express, 20, 19200-19205(2012).

[31] H Guerboukha, K Nallappan, M Skorobogatiy. Exploiting k-space/frequency duality toward real-time terahertz imaging. Optica, 5, 109-116(2018).

[32] M P Edgar, G M Gibson, M J Padgett. Principles and prospects for single-pixel imaging. Nat Photon, 13, 13-20(2019).

[33] E J Candes, M B Wakin. An introduction to compressive sampling. IEEE Signal Process Mag, 25, 21-30(2008).

[34] M. (Center for R. and S. R. Harwit, N. Y. Cornell University, Ithaca, N. J. A. (Bell L. Sloan, and N. J. Murray Hill, Hadamard Transform Optics (Academic Press, 1979).

[35] Z B Zhang, X Ma, J G Zhong. Single-pixel imaging by means of Fourier spectrum acquisition. Nat Commun, 6, 6225(2015).

[36] Z B Zhang, X Y Wang, G A Zheng, J G Zhong. Hadamard single-pixel imaging versus Fourier single-pixel imaging. Opt Express, 25, 19619-19639(2017).

[37] Stern A. Optical Compressive Imaging (CRC Press/Taylor & Francis, 2016).

[38] M F Duarte, M A Davenport, D Takbar, J N Laska, T Sun et al. Single-pixel imaging via compressive sampling: Building simpler, smaller, and less-expensive digital cameras. IEEE Signal Process Mag, 25, 83-91(2008).

[39] E J Candes, T Tao. Near-optimal signal recovery from random projections: Universal encoding strategies?. IEEE Trans Inf Theory, 52, 5406-5425(2006).

[40] D L Donoho. Compressed sensing. IEEE Trans Inf Theory, 52, 1289-1306(2006).

[41] E J Candès, J Romberg, T Tao. Robust uncertainty principles: Exact signal reconstruction from highly incomplete frequency information. IEEE Trans Inf Theory, 52, 489-509(2006).

[42] S Augustin, S Frohmann, P Jung, H W Hübers. Mask responses for single-pixel terahertz imaging. Sci Rep, 8, 4886(2018).

[43] W L Chan, K Charan, D Takhar, K F Kelly, R G Baraniuk et al. A single-pixel terahertz imaging system based on compressed sensing. Appl Phys Lett, 93, 121105(2008).

[44] H Shen, L Gan, N Newman, Y Dong, C Li et al. Spinning disk for compressive imaging. Opt Lett, 37, 46-48(2012).

[45] P Duan, Y Y Wang, D G Xu, C Yan, Z Yang et al. Single pixel imaging with tunable terahertz parametric oscillator. Appl Opt, 55, 3670-3675(2016).

[46] A Kannegulla, M I B Shams, L Liu, L J Cheng. Photo-induced spatial modulation of THz waves: opportunities and limitations. Opt Express, 23, 32098-32112(2015).

[47] Q Chen, Z Jiang, G X Xu, X C Zhang. Near-field terahertz imaging with a dynamic aperture. Opt Lett, 25, 1122-1124(2000).

[48] S Busch, B Scherger, M Scheller, M Koch. Optically controlled terahertz beam steering and imaging. Opt Lett, 37, 1391-1393(2012).

[49] D Shrekenhamer, C M Watts, W J Padilla. Terahertz single pixel imaging with an optically controlled dynamic spatial light modulator. Opt Express, 21, 12507-12518(2013).

[50] A Kannegulla, Z Jiang, S M Rahman, M I B Shams, P Fay et al. Coded-aperture imaging using photo-induced reconfigurable aperture arrays for mapping terahertz beams. IEEE Trans Terahertz Sci Technol, 4, 321-327(2014).

[51] Augustin S, Hieronymus J, Jung P, Hübers H W. Compressed sensing in a fully non-mechanical 350 GHz imaging setting. J Infrared, Millim Terahertz Waves36, 496-512 (2015).

[52] Y J Shang, X K Wang, W F Sun, P Han, J S Ye et al. Terahertz image reconstruction based on compressed sensing and inverse Fresnel diffraction. Opt Express, 27, 14725-14735(2019).

[53] R B She, W Q Liu, Y F Lu, Z S Zhou, G Y Li. Fourier single-pixel imaging in the terahertz regime. Appl Phys Lett, 115, 021101(2019).

[54] R I Stantchev, X Yu, T Blu, E Pickwell-MacPherson. Real-time terahertz imaging with a single-pixel detector. Nat Commun, 11, 2535(2020).

[55] C M Watts, D Shrekenhamer, J Montoya, G Lipworth, J Hunt et al. Terahertz compressive imaging with metamaterial spatial light modulators. Nat Photon, 8, 605-609(2014).

[56] J Kappa, D Sokoluk, S Klingel, C Shemelya, E Oesterschulze et al. Electrically reconfigurable micromirror array for direct spatial light modulation of terahertz waves over a bandwidth wider than 1 THz. Sci Rep, 9, 2597(2019).

[57] J P Zhao, E Yiwen, K Williams, X C Zhang, R W Boyd. Spatial sampling of terahertz fields with sub-wavelength accuracy via probe-beam encoding. Light Sci Appl, 8, 55(2019).

[58] L Olivieri, J S Totero Gongora, A Pasquazi, M Peccianti. Time-resolved nonlinear ghost imaging. ACS Photon, 5, 3379-3388(2018).

[59] L Olivieri, J S Totero Gongora, L Peters, V Cecconi, A Cutrona et al. Hyperspectral terahertz microscopy via nonlinear ghost Imaging. Optica, 7, 186-191(2020).

[60] S A N Saqueb, K Sertel. Phase-sensitive single-pixel Thz imaging using intensity-only measurements. IEEE Trans Terahertz Sci Technol, 6, 810-816(2016).

[61] Y C Shen, L Gan, M Stringer, A Burnett, K Tych et al. Terahertz pulsed spectroscopic imaging using optimized binary masks. Appl Phys Lett, 95, 231112(2009).

[62] L Zanotto, R Piccoli, J Dong, D Caraffini, R Morandotti, L Razzari. Time-domain terahertz compressive imaging. Opt Express, 28, 3795-3802(2020).

[63] R I Stantchev, B Q Sun, S M Hornett, P A Hobson, G M Gibson et al. Noninvasive, near-field terahertz imaging of hidden objects using a single-pixel detector. Sci Adv, 2, e1600190(2016).

[64] R I Stantchev, D B Phillips, P Hobson, S M Hornett, M J Padgett et al. Compressed sensing with near-field THz radiation. Optica, 4, 989-992(2017).

[65] S M Hornett, R I Stantchev, M Z Vardaki, C Beckerleg, E Hendry. Subwavelength terahertz imaging of graphene photoconductivity. Nano Lett, 16, 7019-7024(2016).

[66] R I Stantchev, J C Mansfield, R S Edginton, P Hobson, F Palombo et al. Subwavelength hyperspectral THz studies of articular cartilage. Sci Rep, 8, 6924(2018).

[67] S C Chen, L H Du, K Meng, J Li, Z H Zhai et al. Terahertz wave near-field compressive imaging with a spatial resolution of over λ/100. Opt Lett, 44, 21-24(2019).

[68] T Mohr, A Herdt, W Elsässer. 2D tomographic terahertz imaging using a single pixel detector. Opt Express, 26, 3353-3367(2018).

[69] S A N Saqueb, K Sertel. Compressive Terahertz Imaging Using a Single-Bit Sensor. IEEE Trans Terahertz Sci Technol, 8, 757-764(2018).

[70] S A N Saqueb, K Sertel. Multisensor compressive sensing for high frame-rate imaging system in the THz Band. IEEE Trans Terahertz Sci Technol, 9, 520-523(2019).

[71] S C Chen, Z Feng, J Li, W Tan, L H Du et al. Ghost spintronic THz-emitter-array microscope. Light Sci Appl, 9, 99(2020).

[72] T Seifert, S Jaiswal, U Martens, J Hannegan, L Braun et al. Efficient metallic spintronic emitters of ultrabroadband terahertz radiation. Nat Photon, 10, 483-488(2016).

[73] S M Teo, B K Ofori-Okai, C A Werley, K A Nelson. Invited Article: Single-shot THz detection techniques optimized for multidimensional THz spectroscopy. Rev Sci Instrum, 86, 051301(2015).