[1] [1] Li Qi, Ding Shenghui, Li Yunda, et al. Advances in research on THz digital holographic imaging［J］. Laser & Optoelectronics Progress, 2012, 49(5): 050006.

[2] [2] Zheng Xianhua, Wang Xinke, Sun Wenfeng, et al. Developments and applications of the terahertz digital holography［J］. Chinese J Lasers, 2014, 41(2): 0209003.

[3] [3] Tonouchi M. Cutting-edge terahertz technology［J］. Nature Photonics, 2007, 1(2): 97-105.

[4] [4] Kim K Y, Glownia J H, Taylor A J, et al. Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields［J］. Optics Express, 2007, 15(8): 4577-4584.

[5] [5] Liu J L, Dai J M, Chin S L, et al. Broadband terahertz wave remote sensing using coherent manipulation of fluorescence from asymmetrically ionized gases［J］. Nature Photonics, 2010, 4(9): 627-631.

[6] [6] Blanchard F, Sharma G, Razzari L, et al. Generation of intense terahertz radiation via optical methods［J］. IEEE Journal of Selected Topics in Quantum Electronics, 2011, 17(1): 5-16.

[7] [7] Thomson M D, Kre M, Lffler T, et al. Broadband THz emission from gas plasmas induced by femtosecond optical pulses: From fundamentals to applications［J］. Laser & Photonics Reviews, 2007, 1(4): 349-368.

[8] [8] Oh T I, You Y S, Kim K Y. Two-dimensional plasma current and optimized terahertz generation in two-color photoionization［J］. Optics Express, 2012, 20(18): 19778-19786.

[9] [9] Wen H D, Lindenberg A M. Coherent terahertz polarization control through manipulation of electron trajectories［J］. Physical Review Letters, 2009, 103(2): 023902.

[10] [10] Babushkin I, Skupin S, Husakou A, et al. Tailoring terahertz radiation by controlling tunnel photoionization events in gases［J］. New Journal of Physics, 2011, 13(12): 123029.

[11] [11] Lu X F, Zhang X C. Generation of elliptically polarized terahertz waves from laser-induced plasma with double helix electrodes［J］. Physical Review Letters, 2012, 108(12): 123903.

[12] [12] You Y S, Oh T I, Kim K Y. Mechanism of elliptically polarized terahertz generation in two-color laser filamentation［J］. Optics Letters, 2013, 38(7): 1034-1036.

[13] [13] Liu W W. Intensity clamping during femtosecond laser filamentation［J］. Chinese Journal of Physics, 2014, 52(1): 465-489.

[14] [14] Debayle A, Gremillet L, Bergé L, et al. Analytical model for THz emissions induced by laser-gas interaction［J］. Optics Express, 2014, 22(11): 13691-13709.

[15] [15] Li Na, Bai Ya, Liu Peng. Frequency control of the broadband ultrashort terahertz source generated from the laser induced plasma by two-color pluses［J］. Acta Physica Sinica, 2016, 65(11): 110701.

[16] [16] Li N, Bai Y, Miao T S, et al. Revealing plasma oscillation in THz spectrum from laser plasma of molecular jet［J］. Optics Express, 2016, 24(20): 23009-23017.

[17] [17] Ammosov M V, Delone N B, Krainov V P. Tunnel ionization of complex atoms and of atomic ions in an alternating electromagnetic field［J］. Journal of Experimental and Theoretical Physics, 1986, 64(6): 1191-1194.

[18] [18] Planken P C M, Nienhuys H K, Bakker H J, et al. Measurement and calculation of the orientation dependence of terahertz pulse detection in ZnTe［J］. Journal of the Optical Society of America B, 2001, 18(3): 313-317.

[19] [19] Casalbuoni S, Schlarb H, Schmidt B, et al. Numerical studies on the electro-optic detection of femtosecond electron bunches［J］. Physical Review Accelerators and Beams, 2008, 11(7): 072802.

[20] [20] Nagai M, Mukai N, Minowa Y, et al. Achromatic THz wave plate composed of stacked parallel metal plates［J］. Optics Letters, 2014, 39(1): 146-149.

[21] [21] Scoles G. Atomic and molecular beam methods［M］. New York: Oxford University Press, 1988.