Coupling of THz radiation with intervalence band transitions in microcavities

Automated numerical characterization of dilute semiconductors per comparison with luminescence

“…Note that, in spite of its success to accurately explain experiments such as both single beam and nonlinear pump-probe photoluminescence (Michler et al 1998), as well as being a powerful tool to design optical devices and solar cells (Aeberhard 2011). Nonequilibrium Green's Functions (NEGF) techniques that include Photon Green's functions mentioned above and semiconductor Bloch equations, can be applied to both intersubband (Pereira 2011(Pereira , 2016Pereira and Faragai 2014) and interband transitions (Pereira et al 1994;Grempel et al 1996), but usually requires intensive numerical methods. Therefore, in this project, we did not fully calculate the dephasing attributed to electron-phonon, electron-impurity and electron-alloy disorder scattering and that leads to measured s-shape-like features in dilute semiconductor samples (Imhof et al 2010;Kesaria et al 2015).…”

Anisotropy and nonlinearity in superlattices

“…Efficient numerical methods used here have been successfully applied to both inter-subband (Pereira and Faragai 2014;Pereira 2007;Pereira 2008;Pereira et al 2007;Pereira and Tomić 2011;Pereira 2011) and inter-band transitions (Grempel et al 1996;Pereira et al 1994;Pereira and Henneberger 1997;Chow et al 1992) in quantum wells and superlattices.…”

Anisotropy and nonlinearity in superlattices II

“…Efficient numerical methods used here have been successfully applied to both inter-subband (Pereira and Faragai 2014;Pereira 2007Pereira , 2008Pereira , 2011Pereira et al 2007;Pereira and Tomić 2011) and inter-band transitions (Grempel et al 1996;Pereira et al 1994;Pereira and Henneberger 1997;Chow et al 1992) in quantum wells and superlattices. For completeness, we repeat here the main equations of Pereira (2016) for a guide to the reader, by starting with the interband polarization that has been used to describe superlattices as an effective anisotropic 3D material (Pereira 1995),…”