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Ultrafast coherent carrier control in quantum wells

Ultraschnelle kohärente Ladungsträgerkontrolle in Quantum Wells
 
: Heberle, A.P.; Baumberg, J.J.; Köhler, K.; Ploog, K.

Scheffler, M.; Zimmermann, R.:
23rd International Conference on the Physics of Semiconductors 1996. Vol. 1
Singapore: World Scientific, 1996
ISBN: 981-02-2777-9
ISBN: 981-02-2945-3
S.789-792 : Ill., Lit.
International Conference on the Physics of Semiconductors <23, 1996, Berlin>
Englisch
Konferenzbeitrag
Fraunhofer IAF ()
heterostructure; Heterostruktur; III-V Halbleiter; III-V semiconductors; time resolved measurement; zeitaufgelöste Messung

Abstract
We demonstrate femtosecond coherent control of excitons in quantum wells with phase-locked pairs of 100 fs infrared pulses. Co-polarised pulses allow control of exciton density and coherent destruction of excitons within a few hundred femtoseconds of their creation. Cross-polarised pulses yield coherent control of spin dynamics. Interference oscillations versus pulse separation yield a rich variety of quantum beats.

: http://publica.fraunhofer.de/dokumente/PX-37321.html