[1] Bruesselbach H, Jones D C, Mangir M S, Minden M and Rogers
J L 2005 Opt. Lett. 30 1339

[2] Li L, Sch\"{ulzgen A, Li H, Temyanko V L, Moloney J V and
Peyghambarian N 2007 J. Opt. Soc. Am. B 24 1721

[3] He B, Lou Q H, Zhou J, Zheng Y H, Xue D, Dong J X, Wei Y
R, Zhang F P, Qi Y F, Zhu J Q, Li J Y, Li S Y and Wang Z J 2007
Chin. Opt. Lett. 5 412

[4] He B, Lou Q H, Zhou J, Xue D, Dong J X, Wei Y R, Qi Y F,
Wang Z J 2006 Chin. J. Laser 33 1153 (in Chinese)

[5] Xiao R 2007 PhD Dissertation (Changsha: National
University of Defense Technology) (in Chinese)

[6] Anderegg J, Brosnan S, Weber M, Komine H and Wickham M
2003 Proc. SPIE 4974 1

[7] Anderegg J, Brosnan S, Cheung E, Epp P, Hammons D, Komine
H, Weber M and Wickham M 2006 Proc. SPIE 6102 61020U-1

[8] Hou J, Xiao R, Jiang Z F, Cheng X A, Shu B H, Chen J B and
Liu Z J 2005 Chin. Phys. Lett . 9 2273

[9] Hou J and Xiao R 2006 Chin. Phys. Lett. 12
3288

[10] Shay T M and Benham V 2004 Proc. SPIE 5550 313

[11] Shay T M, Benham V, Baker J T, Ward C B, Sanchez A D,
Culpepper M A, Pilkington S D, Spring L J, Nelson L D J and Lu L C A
2006 Opt. Exp. 14 12015

[12] Shay T M 2006 Opt. Exp. 14 12188

[13] Augst S J, Fan T Y and Sanchez A 2004 Opt. Lett.
29 474