Franz-Keldysh effect in T-wire semiconductor structures inapplied magnetic field

摘要

We have calculated the optical absorption spectra of magnetoexcitons in T-wiresemiconductor. It is calculated using the semiconductor Bloch equations in time and real-spacedomains. The peak and the linewitdth of the fundamental exciton transition are investigatedas a function of the applied magnetic and static electric field. The latter is applied alongthe wire axis and induces a broadening in the absorption spectra line, energy shift, and thecharacterisitic Franz-Keldysh oscillations. The exciton binding energy enhances increasingthe magnetic field strength.