Nonlinear Optical Absorption of InP Doping Superlattice
- 1 October 1986
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 25 (10A), L804
- https://doi.org/10.1143/jjap.25.l804
Abstract
Absorption coefficients (α0) of InP doping superlattice are found to show large reduction (Δα) 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 Δα/α0·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.Keywords
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