[1] A. Goetz, G. Vane, J. Solomon, B. Rock. Science, 228, 1147(1985).
[2] Q. Yang, X. Zeng, B. Zhao. Chin. Opt. Lett., 589, 30(2013).
[3] Q. Yang. Chin. Opt. Lett., 12, 031201(2014).
[4] Q. Xue, S. Wang, F. Li. Chin. Opt. Lett., 7, 861(2009).
[5] L. Zhang, J. Dai, Z. Yin. Chin. Opt. Lett., 13, 063001(2015).
[6] T. Mu, C. Zhang. Chin. Phys. B, 6, 200(2010).
[7] W. Smith, P. Hammer. Appl. Opt., 35, 2902(1996).
[8] R. Sellar, D. Tyler. Proc. SPIE, 2198, 338(1994).
[9] W. Wei, J. Nong, L. Tang, G. Zhang, X. Jiang, Y. Zhu. Chin. Opt. Lett., 13, 082801(2015).
[10] U. Huth, A. Wieschollek, Y. Garini, R. Schubert, R. Peschka-Suss. Cytom. A, 57, 10(2004).
[11] C. Zhang, X. Bin, B. Zhao. Proc. SPIE, 4087, 957(2000).
[12] T. Mu, C. Zhang, B. Zhao. Opt. Commun., 282, 1984(2009).
[13] C. Zhang, X. Yan, B. Zhao. Opt. Commun., 281, 2050(2008).
[14] X. Jian, C. Zhang, L. Zhang, B. Zhao. Opt. Express, 18, 5674(2010).
[15] C. Zhang, W. Ren, T. Mu, L. Fu, C. Jia. Opt. Express, 21, 2592(2013).
[16] T. Mu, C. Zhang, W. Ren, X. Jian. Meas. Sci. Technol., 22, 105302(2011).
[17] D. Yazdani, A. Bakhshai, G. Joos, M. Mojiri. Proceedings of the IEEE International Symposium on Industrial Electronics, 226(2008).
[18] I. Claesson, A. Rossholm. Proceedings of the 5th International Conference on Information, Communications and Signal Processing (ICICS), 1320(2005).
[19] N. Chandra, B. D. Man. System and method of notch filtration for dual energy CT. U.S. patent(2012).
[20] N. Sandirasegaram, R. English. Proc. SPIE, 42, L724(2003).
[21] F. Yang, G. Liu, Q. An, X. Zhang. Chin. Opt. Lett., 13, 041201(2015).