The effects of hydrostatic pressure on the nonlinear intersubband transitions and refractive index changes of different QW shapes
Abstract
In this study, the effects of hydrostatic pressure on the linear and nonlinear intersubband transitions and the refractive index changes in the conduction band of different quantum well shapes are theoretically calculated within framework of the effective mass approximation. Results obtained show that intersubband properties and the energy levels in different QWs can be modified and controlled by the hydrostatic pressure. The modulation of the absorption coefficients and the refractive index changes which can be suitable for good performance optical modulators and various infrared optical device applications can be easily obtained by tuning the hydrostatic pressure strength. (C) 2012 Elsevier B.V. All rights reserved.
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OPTICS COMMUNICATIONSVolume
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