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A new method is proposed for semiconductor quantum well (QW) shape optimization in respect to the electro-optic coefficients. It relies on iterative solving of the system of coupled Schrodinger equations, which determine the wave functions of relevant states, and of Euler-Lagrange equations derived by applying the variational calculus to the target functional, with the starting potential supplied...
The influence of permanent dipole moments on intersubband double resonance second harmonic generation in asymmetric quantum wells is analyzed. It is found that in realistic QWs matched for 10.6 μm pump the permanent dipole moments may have modest to significant influence on the conversion efficiency, especially at higher pump powers. At longer wavelengths, however, their influence increases, and...
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