An echo of an exciting light pulse in quantum wells

Details An echo of an exciting light pulse in quantum wells An echo of an exciting light pulse in quantum wells

2001-05-09

arxiv.org/abs/cond-mat/0105198v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures with captions

Scientific paper

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 large number of the equidistant energy levels of electronic excitations. A damping echo of the exciting pulse appears through the time intervals $2\pi\hbar/\Delta E$ in the case of the very short light pulses $\gamma_l^{-1}\ll\hbar/\Delta E$.

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