Effect of structural design on the optical properties of strain-compensated InAs/InGaAsN/GaAsN superlattices

摘要

We have studied the influence of structural design on the optical properties of heterostructures comprising InAs quantum wells (QWs) and quantum dots (QDs) in strain-compensated GaAsN/InGaAsN superlattices. It is established that, using such superlattices with various QW and barrier thicknesses and different numbers (from one to three) InAs inserts in the active region, it is possible to control the wavelength of room-temperature emission within 1.3-1.76 mu m without deteriorating the output radiation characteristics.