[1] A. Ashkin, J. M. Dziedzic, J. E. Bjorkholm, and S. Chu, Opt. Lett. 11, 288 (1986).
[2] J. Yin and Y. Zhu, J. Appl. Phys. 85, 2473 (1999).
[3] R. Ozeri, L. Khaykovich, and N. Davidson, Phys. Rev. A 59, 1750 (1999).
[4] J. Arlt and M. J. Padgett, Opt. Lett. 25, 191 (2000).
[5] T. Freegrade and K. Dholakia, Phys. Rev. A 66, 013413 (2000).
[6] A. Kaplan, N. Friedman, and N. Davidson, J. Opt. Soc. Am. B 19, 1233 (2002).
[7] D. Yelin, B. E. Bouma, and G. J. Tearney, Opt. Lett. 29, 661 (2004).
[8] J. Pu, X. Liu, and S. Nemoto, Opt. Commun. 252, 7 (2005).
[9] D. McGloin, G. C. Spalding, H. Melville, W. Sibbett, and K. Dholakia, Opt. Commun. 225, 215 (2003).
[10] B. P. S. Ahluwalia, X.-C. Yuan, and S. H. Tao, Opt. Commun. 238, 177 (2004).
[11] Y. Chen, J. Pu, and X. Liu, Chin. J. Lasers (in Chinese) 33, 1375 (2006).
[12] L. Allen, M. W. Beijersbergen, R. J. C. Spreeuw, and J. P. Woerdman, Phy. Rev. A 45, 8185 (1992).
[13] M. Gao, C. Gao, and Z. Lin, Chin. Opt. Lett. 5, 89 (2007).
[14] J. Pu, S. Nemoto, and X. Liu, Appl. Opt. 43, 5281 (2004).
[15] D. M. Palacios, I. D. Maleev, A. S. Marathay, and G. A. Swartzlander, Phys. Rev. Lett. 92, 143905 (2004).
[16] I. D. Maleev, D. M. Palacios, A. S. Marathay, and G. A. Swartzlander, J. Opt. Soc. Am. B 21, 1895 (2004).
[17] L. Mandel and E. Wolf, Optical Coherence and Quantum Optics (Cambridge University Press, Cambridge, 1995).
[18] V. Jarutis, R. Paskauskas, and A. Stabinis, Opt. Commun. 184, 105 (2000).
[19] L. E. Helseth, Opt. Commun. 229, 85 (2004).