[1] [1] L. Xu, X. C. Zhang, D. H. Auston. Terahertz beam generation by femtosecond optical pulses in electro-optic materials［J］. Appl. Phys. Lett., 1992, 61(15): 1784～1786

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

[3] [3] Q. Wu, X. C. Zhang. Free-space electro-optic sampling of terahertz beam［J］. Appl. Phys. Lett., 1995, 67(24): 3523～3525

[4] [4] P. Y. Han, G. C. Cho, X. C. Zhang. Time-domain transillumination of biological tissues with terahertz pulse［J］. Opt. Lett., 2000, 25(4): 242～244

[5] [5] S. Yokoyama, R. Nakamura, M. Nose et al.. Terahertz spectrum analyzer based on a terahertz frequency comb［J］. Opt. Express, 2008, 16(17): 13052～13061

[6] [6] W. L. Chan, J. Deibei, D. M. Mittleman. Imaging with terahertz radiation［J］. Repts Prog. in Phys., 2007, 70(8): 1325～1335

[7] [7] D. M. Mittleman, M. Gupta, R. Neelamani et al.. Recent advance in terahertz imaging［J］. Appl. Phys. B: Lasers and Optics., 2007, 68(6): 1085～1094

[8] [8] J. F. Federici, B. Schulkin, F. Huang. THz imaging and sensing for security applications-explosives, weapons and drugs［J］. Semicond. Sci. Technol., 2005, 20(7): 266～280

[9] [9] Z. Ghattan, T. Hasek, R. Wilk et al.. Sub-terahertz on-off switch based on a two-dimensional photonic crystal infiltrated by liquid crystal［J］. Opt. Commun., 2008, 281(18): 4623～4625

[10] [10] H. Zhang, P. Guo, S. J. Chang et al.. Liquid-crystal-filled photonic crystal for terahertz switch and filter［J］. J. Opt. Soc. Am. B., 2009, 26(1): 101～106

[11] [11] Fan Fei, Guo Zhan, Chang Shengjiang. Magnetically tunable magneto-photonic crystals for multifunctional terahertz polarization controller［J］. Acta Physica Sinica, 2011, 60(8): 358～364

[12] [12] R. Wilk, N. Vieweg, O. Kopschinski et al.. Liquid crystal based electrically switchable Bragg structure for THz waves［J］. Opt. Express, 2009, 17(9): 7377～7382

[13] [13] G. D. Reyes, A. Quema, C. Ponseca et al.. Low loss single mode terahertz waveguiding using cytop［J］. Appl. Phys. Lett., 2006, 89(21): 211119

[14] [14] R. T. Bise, R. S. Windeler, K. S. Kranz et al.. Tunable photonic band gap fiber［J］. Optical Fiber Communication, 2002, 70(6): 466～468

[15] [15] F. Du, Y. Q. Lu, S. T. Wu. Electrically tunable liquid-crystal photonic crystal fiber［J］. Appl. Phys. Lett., 2004, 85(12): 2181～2183

[16] [16] Wu Ben, Zhang Hui, Chang Shengjiang et al.. Magnetically tunable liquid crystal terahertz switch based on Bragg fiber［J］. Acta Physica Sinica, 2009, 58(3): 1838～1843

[17] [17] S. Ertman, T. R. Wolinski, R. Buczynski et al.. Low loss propagation and continuously tunable birefringence in high-index photonic crystal fibers filled with nematic liquid crystals［J］. Opt. Express, 2009, 17(21): 19298～19310

[18] [18] T. T. Alkeskjold, A. Bjarklev. Electrically controlled broadband liquid crystal photonic bandgap fiber polarimeter［J］. Opt. Lett., 2007, 32(12): 1707～1709

[19] [19] Wang Ning, Li Guohua, Yun Maojin. Voltage-dependent birefringence measurements of liquid crystals［J］. Chinese J. Lasers, 2002, A29(12): 1064～1066

[20] [20] Wang Bingkui, Wang Zaijing, Wang Rong et al.. Study of nonlinear optic properties of novel ferroelectric liquid crystals［J］. Chinese J. Lasers, 1994, A21(11): 923～928

[21] [21] Shen Hao, Xiao Sheng′an, Xu Ke. Preparation and study of electroptic bistability of a ferroelectric liquid crystal cell［J］. Chinese J. Lasers, 1994, A21(11): 904～908