[1] Yeh Pa. and Sari S., Optical properties of stratified media with exponentially graded refractive index
[J]. Appl. Opt., 1983, 22(24):4142-4145.
[2] Song Junfeng, Han Changhong, Ma Chuensheng, Du Guotong . Precise Solutions to TE Modes in a Multilayer Kerr-type Nonlinear Slab-waveguide
[J]. Chinese Journal of Quantum Electronics,1997,14 (4):137-143 (in Chinese).
[3]Xiao Ping-Ping. Real-Time Investigation on Refractive-Index and Thickness of Polymer Films during Photobleaching Process
[J]. Acta Physico-Chimica Sinica, 2008,24(7):1321-1326 (in Chinese).