n zamani - shiraz university
a keshavarz
m soleimanivareki - Department of Applied Mathematics, Faculty of Basic Sciences, Islamic Azad university-science research Ayatollah Amoli branch

in this work the particle swarm optimization is used as an optimization optical rectification coefficient for square double quantum wells by combining this algorithm together with bumerical solution of schrodinger equation and using the density matrix method we found the wells structure that the optical rectification coefficient is maximum.

particle swarm optimization,optical rectification coefficient ,asymmetric double quantum wells