Spatial Modulation of the Dielectric Permittivity and its Effect on the Spectral Responsivity of Heterodimensional Photodetectors
Authors:
F. Castro and B. Nabet
Affilation:
Motorola Laboratories, U.S.A.
Pages:
454 - 457
Keywords:
AlGaAs/GaAs heterointerface, non-uniform electric field, dielectric permmittivity, Franz-Keldysh, spatial modulation
Abstract:
Spectral photocurrent measurements on AlGaAs/GaAs heterodimensional detectors show a peak near the absorption edge of GaAs under low incident power and at high biasing levels. Previous work has attributed similar results to the Franz-Keldysh spectral mod
