Investigation on the effect of substrate heat treatment on the optical properties of MBE-grown GaAs on silicon substrates - Catindig, Gerald Angelo; Simon, Rhenish; Gonzales, Karl Cedric; Sadia, Cyril; Prieto, Elizabeth Ann; Vasquez, John Daniel; Vizcara, Sheryl Ann; Alcantara, Crizia; Husay, Horace Andrew; Estacio, Elmer; et al. (Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress, 2015)