[3] [3] Rafa M, Iwona J, Krystyna K. International Journal of Coal Geology, 2014, 134-135(2014): 17.

[4] [4] Zhan H, Wu S, Bao R, et al. Fuel, 2015, 143: 189.

[8] [8] Tanno T, Oohashi T, Katsumata I, et al. Fuel, 2013, 105: 769.

[9] [9] Zhan H, Zhao K, Xiao L. Energy, 2015, 93: 1140.

[10] [10] Garet F, Hofman M, Meilhan J, et al. Applied Physics Letters, 2014, 105(3): 31106.

[11] [11] Xu W, Xie L, Zhu J, et al. Food Chemistry, 2017, 218: 330.

[12] [12] Herrmann M, Tani M, Watanabe M, et al. Optoelectronics, IEE Proceedings, 2002, 149(3): 116.

[13] [13] Bandyopadhyay A, Sengupta A, Barat R B, et al. International Journal of Infrared and Millimeter Waves, 2007, 28(11): 969.

[14] [14] Zurk L M, Orlowski B, Winebrenner D P, et al. Journal of the Optical Society of America B, 2007, 24(9): 2238.

[16] [16] Kerker M, Loebl E M. The Scattering of Light and Other Electromagnetic Radiation: Academic Press, 1969. 688.

[17] [17] Mandt C E, Kuga Y, Tsang L, et al. Waves in Random Media, 1992, 2(3): 225.

[18] [18] Giusto A, Saija R, Iati M A, et al. Appl. Opt., 2003, 42(21): 4375.

[19] [19] Molero M, Segura I, Aparicio S, et al. European Journal of Environmental & amp; Civil Engi., 2011.

[20] [20] Kaushik M, Ng B W, Fischer B M, et al. Applied Physics Letters, 2012, 100(24111024).

[21] [21] Duvillaret L, Garet F, Coutaz J L. Appl. Opt., 1999, 38(2): 409.

[22] [22] Shen Y C, Taday P F, Pepper M. Applied Physics Letters, 2008, 92(0511035).

[23] [23] Franz M, Fischer B M, Walther M. Applied Physics Letters, 2008, 92(2): 21107.