Deconvolution of Photoluminescence Spectra of Al sub x GA sub 1-x as Grown by MBE (Molecular Beam Epitaxy).
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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This study investigated the feasibility of applying the spectral analysis algorithm referred to as the Maximum Entropy Method to photoluminescence spectra from AlGaAs samples. Two GaAs and ten AlGaAs samples were analyzed. The Maximum Entropy Method, implemented in a routine called CRUNCH, which was developed at the Jet Propulsion Lab, employs an autoregressive model to remove the noise from the high frequency terms of the discrete fourier transform of the spectra. Standard fourier deconvolution techniques are then applied to resolve the peaks of the spectrum. The results of this study indicate that the Maximum Entropy Method is a useful tool in resolving the peaks of a photoluminescence spectrum.
- Radiation and Nuclear Chemistry
- Solid State Physics