Laser superlattices

摘要

Periodic propagation of an optical charge can serve as the basis of an effective method for fabricating superlattices. Semiconductor superlattices are fabricated using molecular-beam epitaxy in ultrahigh vacuum and metalorganic vapor phase epitaxy. The charge propagating along the optical fiber was compared with a combustion wave. A substance heated by the charge plasma starts absorbing; thus, the absorption zone (star) is displaced toward the beam. The results of the numerical simulation grounded on these representations were in qualitative agreement with the experimental rate of the wave and parameters of its propagation. At low diffusion, the combustion front is subjected to oscillatory instability. As applied to the optical charge, the absorption zone quickly passes the heated region and stops.