Nonlinear Optical Absorption of InP Doping Superlattice

概要

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Absorption coefficients (α_0) of InP doping superlattice are found to show large reduction (Δ_α) under optical excitation at 77 K. The optical intensity (I) required to produce the same amount of absorption coefficient reduction is at least one order of magnitude smaller than the value reported for GaAs multi quantum well at room temperature. The value of Δ_α/α_0・I remains larger than one fourth of its maximum in the wide wavelength region from 885 nm to 930 nm. The observed changes in absorption spectra show good agreement with calculated results that take the internal Franz-Keldysh effect into account.
社団法人応用物理学会の論文
1986-10-20