Infrared intersubband absorption in GaAs/AlAs multiple quantum wells

Covington, B. C.; Lee, C. C.; Hu, B. H.; Taylor, H. F.; Streit, D. C.
May 1989
Applied Physics Letters;5/22/1989, Vol. 54 Issue 21, p2145
Academic Journal
Optical absorption spectra have been measured from 6 to 296 K for a GaAs/AlAs multiple quantum well sample which shows a strong peak at 11.1 μm at room temperature. These and previously published results are compared with predictions of an effective mass model which takes into account conduction-band nonparabolicity.


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