Metamorphic distributed Bragg reflectors for the 1440-600 nm spectral range: Epitaxy, formation, and regrowth of mesa structures
文摘
It is shown that metamorphic In0.3Ga0.7As/In0.3Al0.7As distributed Bragg reflectors (DBRs) with a reflection band at 1440-600 nm and a reflectance of no less than 0.999 can be fabricated by molecular beam epitaxy (MBE) on a GaAs substrate. It is demonstrated that mesa structures formed from metamorphic DBRs on a GaAs substrate can be regrown by MBE and microcavities can be locally formed in two separate epitaxial processes. The results obtained can find wide application in the fabrication of vertical-cavity surface-emitting lasers (VCSELs) with a buried tunnel junction. Original Russian Text ? A.Yu. Egorov, L.Ya. Karachinsky, I.I. Novikov, A.V. Babichev, T.N. Berezovskaya, V.N. Nevedomskiy, 2015, published in Fizika i Tekhnika Poluprovodnikov, 2015, Vol. 49, No. 10, pp. 1434-438.