Abstract
Optical absorptions in semi-parabolic quantum wells are investigated. By using density-matrix approach and iterative procedure, the analytical formula of optical absorption coefficients in this semi-parabolic quantum wells are deduced. The numerical results on typical GaAs/AlGaAs materials are calculated. The relations between the optical absorptions and the quantum confinement from the semi-parabolic quantum wells, the incident optical intensity, and the relaxation rate are investigated. The results indicate that the absorption peaks bule-shift and the values of the peaks increase with the enhancement of the parabolic confining frequency. The values of the absorption peaks increase quickly with the increase of the relaxation time. In addition, the total absorption coefficient decrease with the increase of the incident optical intensity.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
