Publications

Binary superlattice quantum-well infrared photodetectors for long-wavelength broadband detection

Ellis, A.R.; Majumdar, Amlan; Choi, K.K.; Reno, J.L.; Tsui, D.C.

A long-wavelength broadband quantum-well infrared photodetectors (QWIP) were analyzed using a superlattices (SL) with a binary basis. The binary SL (BSL) structure offered greater flexibility in spectral coverage and line shape. The energy levels and wave functions of one period of the BSL structure were calculated using the transfer matrix method. The photoresponse spectra from both wafers were found to be unchanged over a wide range of operating bias and temperature.