Oxidation of GaAs Substrates to Enable β-Ga2O3 Films for Sensors and Optoelectronic Devices (SPIE Optical Engineering + Applications); SPIE: San Diego, CA, USA, 2017. 24. Yoshida, T.; Yamamoto, N.; Mizutani, T.; Yamamoto, M.; Ogawa, S.; Yagi, S.; Nameki, H.; Yoshida, H. ...