Operaña, J.C., Simon, R.C. and Hermosa, N. 2020. An approach to thin film oxide detection in GaAs substrate using Goos-Hanchen shift. Proceedings of the Samahang Pisika ng Pilipinas, 38(1), SPP-2020-3G-04. URL: https://proceedings.spp-online.org/article/view/SPP-2020-3G-04.