An echo of an exciting light pulse in quantum wells

Lang, I. G.; Korovin, L. I.; Contreras-Solorio, D. A.; Pavlov, S. T.

An echo of an exciting light pulse in quantum wells

Authors

Lang, I. G.

Korovin, L. I.

Contreras-Solorio, D. A.

Pavlov, S. T.

Description

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 $2π\hbar/ΔE$ in the case of the very short light pulses $γ_l^{-1}\ll\hbar/ΔE$.
3 pages, 2 figures with captions