Effect of interdiffusion on nonlinear intraband light absorption in Gaussian-shaped double quantum rings

• The effect of interdiffusion is considered in Gaussian-Shaped double rings.
• The confining potential profiles have been obtained.
• The electron energy spectrum is calculated.
• The probability densities of electron are obtained for various values of parameters.
• The nonlinear absorption coefficients are calculated as well.

The effect of interdiffusion on electronic states and nonlinear light absorption in Gaussian-shaped double quantum rings is studied. The confining potential, electron energy spectrum, wave functions and absorption coefficient are obtained for different values of diffusion parameter. The effect of the variation of Gaussian parameters is considered as well. The selection rules for the intraband transitions in the cases of the light polarization parallel and perpendicular to the quantum rings' axis are obtained. It is shown that the interdiffusion can be used as an effective tool for the purposeful manipulation of the electric and optical properties of the considered structure.

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