article
High-Pressure effects in to the Absorption coefficient and relative refractive index change in an asymmetric double δ-doped GaAs quantum well
Fecha
2015-03-26Registro en:
1521-3951
Autor
Rodríguez Magdaleno, K. A.
Martínez Orozco, Juan Carlos
Rodríguez Vargas, Isaac
Mora Ramos, Miguel Eduardo
Duque, Carlos Alberto
Institución
Resumen
In the framework of the effective mass approximation and using a Thomas–Fermi‐like model for the conduction band potential energy profile, the effects of hydrostatic pressure on the linear and nonlinear intersubband optical response of an asymmetric double ‐doped quantum well are studied. In particular, the intersubband coefficients of light absorption and the relative refractive index change in the system were calculated. It is found that the pressure causes a redshift of the signal response as well as a reduction in the coefficients's amplitudes. We have also found that the asymmetry of the potential profile clearly affects the relative refractive index change because, as long as the system becomes more asymmetric, this physical property becomes diminished.