[1] [1] Zhong Hua, Zhang Cunlin, Zhang Liangliang. Appl. Phy. Lett., 2008, 92(22): 221106.

[2] [2] Liu Haibo, Zhong Hua, Karpowicz. Proceedings of the IEEE, 2007, 95(8): 1514.

[3] [3] Hooper J, Mitchel E, Konek C. Chemical Physics Letters, 2009, 46(7): 309.

[4] [4] Laman N, Sree Harsha S, Grischkowsky D. Optics Express, 2008, 16(6): 4094.

[6] [6] Matthew B Campbell, Edwin J Heilweil. SPIE, 2003, 50(70): 38.

[8] [8] Hu Ying, Huang Ping, Guo Lantao. Physics Letters A, 2006, 359: 728.

[9] [9] Megan R, Leahy Hoppa, Michael J Fitch. Anal. Bioanal. Chem., 2009, 395: 247.

[10] [10] Joseph S Melinger, Laman N, Grischkowsky D. Applied Physics Letters, 2008, 93(011102): 1.