Coherent vs Incoherent Emission from Semiconductor Structures after Resonant Femtosecond Excitation
- 21 April 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (16) , 3205-3208
- https://doi.org/10.1103/physrevlett.78.3205
Abstract
We show that an interferometric correlation measurement with fs time resolution provides an unambiguous discrimination between coherent and incoherent emission after resonant femtosecond excitation. The experiment directly probes the most important difference between the two emissions, that is, the phase correlation with the excitation pulse. The comparison with cw frequency resolved measurements demonstrates that the relationship between coherent and incoherent emission is similar under femtosecond and steady-state excitation.Keywords
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