Abstract
Two phase-locked pulses are used to coherently excite excitonic polarizations. It is shown that the second pulse can either be strongly amplified by taking up energy gained from the destruction of the exciton polarization or can be decreased drastically by giving up all its energy to excitons. Both the temporal and the spectral signatures of the transmitted pulse shapes agree well with model calculations.
- Received 1 July 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.3474
©2000 American Physical Society