Abstract
We have investigated the effects of the shape of quantum dots on their optical absorptions. Calculations are performed by using the matrix diagonalization method and the compact density-matrix approach within the effective-mass approximation. We have calculated the linear, third-order nonlinear and total optical absorption coefficients as a function of the incident photon energy in circular, elliptic, and triangular shaped quantum dots. Our results show that the shape of quantum dots has great influence on optical absorption coefficients.
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