Reflection and absorption of QWs irradiated by light pulses in a strong magnetic field
I. G. Lang L. I. Korovin, D. A. Contreras-Solorio, S. T. Pavlov
Abstract
It has been shown that the non-sinusoidal character oscillations appear in the transmitted, reflected and absorbed light fluxes when light pulses irradiate a semiconductor quantum well (QW), containing a set of a large number of the equidistant energy levels of electronic excitations. The oscillation amplitude is comparable to the flux values for the short pulses, duration of which γl-1 ≤ /ΔE. A damping echo of the exciting pulse appears through the time intervals 2π/ΔE in the case of the very short light pulses γl-1 /ΔE. Symmetrical and asymmetrical pulses with a sharp front have been considered. Our theory is applicable for the narrow QWs in a strong magnetic field, when the equidistant energy levels correspond to the electron-hole pairs with different Landau quantum numbers.
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