Abstract
In this paper, we report the dependence of the Gaussian nature of absorption spectra of InAs/InP shallow quantum dot or quantum dash systems on the depth of the dash and also on its relative standard deviation. The dash is considered to be an elongated quantum box with a square base having finite potentials at the boundaries. Our observations reveal that the absorption spectra of the quantum dashes are strongly sensitive to the depth and also on the standard deviation of the dash depth. Predicted results help unveil a better physical insight regarding the optical properties of InAs/InP quantum dash structures. The results are in excellent agreement with reported experimental data of photoluminescence and absorption.
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