[1] M. S. Soskin and M. V. Vasnetsov, Prog. Opt. 42, 219 (2001).
[2] J. F. Nye and M. V. Berry, Proc. R. Soc. Lond. A 336, 165 (1974).
[3] M. V. Berry, New J. Phys. 4, 66.1 (2002).
[4] G. Gbur, T. D. Visser, and E. Wolf, Phys. Rev. Lett. 88, 013901 (2002).
[5] G. Gbur, T. D. Visser, and E. Wolf, J. Opt. Soc. Am. A 19, 1694 (2002).
[6] S. A. Ponomarenko and E. Wolf, Opt. Lett. 27, 1211 (2002).
[7] J.-X. Pu and C. Cai, Chin. Phys. Lett. 21, 1268 (2004).
[8] L. Z. Pan and B. D. Lu, Acta Opt. Sin. (in Chinese) 23, 707 (2003).
[9] L. Wang and Q. Lin, IEEE J. Quantum Electron. 39, 749 (2003).
[10] L. Pan and B. Lu, Opt. Laser Technol. 36, 501 (2003).
[11] T. D. Visser and E. Wolf, J. Opt. A: Pure and Appl. Opt. 5, 371 (2003).
[12] J. Pu, C. Cai, and S. Nemoto, Chin. Opt. Lett. 2, 239 (2004).
[13] S. Anand, B. K. Yadav, and H. C. Kandpal, J. Opt. Soc. Am. A 19, 2223 (2002).
[14] J. Pu, S. Nemoto, and B. Lu, J. Opt. Soc. Am. A 20, 1933 (2003).
[15] S. A. Collins, J. Opt. Soc. Am. 60, 1168 (1970).
[16] E. Wolf, T. Shirai, H. Chen, and W. Wang, J. Mod. Opt. 44, 1345 (1997).
[17] T. Shirai, E. Wolf, H. Chen, and W. Wang, J. Mod. Opt. 45, 799 (1998).