Edeltraud Gehrig and Ortwin Hess
The charge carrier plasma within a broad-area semiconductor laser amplifier is an active light-emitting and highly nonlinear media in which the dynamic light-matter interaction occurs on timescales ranging from femtosecond to the nanosecond regime. Due to the spatial transport of carriers and interband polarization as well as the counter-propagation of light, the internal processes linked to amplification, absorption and relaxation occur on both spatial and temporal scales.
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