Abstract
Coherent control is the exploitation of interference between two or more optically excited quantum mechanical pathways to manipulate the final state of a physical system. Recently it has been used to control exciton populations in GaAs/AlGaAs quantum wells at 4 K via phase-related 805-nm 100-fs pulses1 and to generate electrical current in bulk GaAs at 295 K via 1.55 μn and 0.775 μm, 175 to 1000-fs pulses.2 We consider here the coherent control of electron-hole density in GaAs at 295 K via the interference of single- and two-photon band-to-band generation processes.
© 1998 Optical Society of America
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