1. T. Wen-Che, K. Hui-Ling, and L. Kun-Hsu, Opt. Express 23, 2187 (2015).
2. C. L. Wei, Y. E. Chen, and C. C. Cheng, Thin Solid Films 518, 3059 (2010).
3. O. G. Vendik, Yu. N. Gorin, and V. F. Popov, Corpuscular-Photonic Technology (Vyssh. Shkola, Moscow, 1984) [in Russian].
4. A. N. Zakirova, P. N. Krylov, I. A. Suvorov, and I. V. Fedotova, Vestn. Udmurd. Univ., Ser.: Fiz. Kondens. Sost. V-va, No. 4, 14 (2010).
5. L. V. Grigor’ev and A. V. Mikhailov, J. Opt. Technol. 82, 777 (2015).