[1] K. Matsushima and M. Takai, Appl. Opt. 39, 6587 (2000).
[2] M. Lucente, J. Electron. Imag. 2, 28 (1993).
[3] S.-C. Kim and E.-S. Kim, Appl. Opt. 47, D55 (2008).
[4] K. Matsushima, H. Schimmel, and F. Wyrowski, J. Opt. Soc. Am. A 20, 1755 (2003).
[5] D. Abookasis and J. Rosen, Appl. Opt. 45, 6533 (2006).
[6] S. Trester, Eur. J. Phys. 21, 317 (2000).
[7] H. Zheng, Y. Yu, H. Qian, and A. Asundi, Proc. SPIE 7155, 71550C (2008).
[8] V. Namias, IMA J. Appl. Math. 25, 241 (1980).
[9] A. W. Lohmann, J. Opt. Soc. Am. A 10, 2181 (1993).
[10] S. Barwick and J. S. Finnigan, Opt. Lett. 34, 154 (2009).
[11] S. Chen, T. Zhang, and X. Feng, Chinese J. Lasers (in Chinese) 36, 374 (2009).
[12] W. Jin and Y. Zhang, Chin. Opt. Lett. 5, 628 (2007).
[13] M. Joshi, Chandrashakher, and K. Singh, Opt. Commun. 279, 35 (2007).
[14] F. Nicolas, S. Co¨etmellec, M. Brunel, D. Allano, D. Lebrun, and A. J. E. M. Janssen, J. Opt. Soc. Am. A 22, 2569 (2005).
[15] H. Kim, S.-W. Min, B. Lee, and T.-C. Poon, Appl. Opt. 47, D164 (2008).
[16] J. Garc′ a, D. Mas, and R. G. Dorsch, Appl. Opt. 35, 7013 (1996).
[17] X. Yang, Q. Tan, X. Wei, Y. Xiang, Y. Yan, and G. Jin, J. Opt. Soc. Am. A 21, 1677 (2004).