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Femtosecond pulse shaping for coherent carrier control

Femtosekunden Pulsformung zur kohärenten Trägerkontrolle
: Heberle, A.; Baumberg, J.; Kuhn, T.; Köhler, K.


Physica. B 272 (2000), pp.360-362
ISSN: 0921-4526
Journal Article
Fraunhofer IAF ()
III-V semiconductor; III-V Halbleiter; superlattice; Übergitter; optical measurement; optische Messung

We investigate coherent control of exciton dynamics in semiconductor quantum wells with Fourier-domain shaped pulses. Off-resonant optical nutation is demonstrated after excitation of quantum wells with two phase-locked pulses of different energy. The effect can be modeled with semiconductor Bloch equations. Resonant excitation of multiple quantum wells with a square pulse is shown to induce a rise in differential reflectivity only after the end of the pulse.