Abstract
The propagation of small-area picosecond pulses of coherent light in resonance with the I2 bound-exciton line in CdS is investigated. The observed strong reshaping of the pulses in form of propagation beats is consistent with the concomitantly measured hole formation in the pulse spectrum. By employing transform-limited time-resolved spectroscopy the complex amplitude of the transmitted optical field can be reconstructed. This allows to identify the beats as amplitude oscillations and phase changes by π characteristic of 0π pulse formation.
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