B. Koley et al., KINETICS OF GROWTH OF ALAS OXIDE IN SELECTIVELY OXIDIZED VERTICAL-CAVITY SURFACE-EMITTING LASERS, Journal of applied physics, 82(9), 1997, pp. 4586-4589
The wet oxidation kinetics of AlAs layers of interest in vertical cavi
ty surface emitting laser (VCSEL) fabrication are investigated in deta
il. The process is modeled as a diffusion-reaction process. For oxidat
ion over a long time interval, variation of the oxidation rate with th
e variation of the radius of the etched mesa of the VCSEL is observed.
A theory has been developed to obtain the rate equation of the oxidat
ion process and the dependence of the oxidation rate on the size of th
e VCSEL is explained. (C) 1997 American Institute of Physics. [S0021-8
979(97)07121-1].