Observation of coherent transients in ultrashort chirped excitation of an undamped two-level system.
作者： Sébastien Zamith , Jérôme Degert , Sabine Stock , Béatrice de Beauvoir , Valérie Blanchet
DOI: 10.1103/PHYSREVLETT.87.033001
关键词:
摘要: The effects of coherent excitation a two-level system with linearly chirped pulse are studied theoretically and experimentally [in Rb (5s-5p)] in the low field regime. transients measured directly on excited state population an ultrashort time scale. A sharp step corresponds to passage through resonance. It is followed by oscillations resulting from interferences between off-resonant resonant contributions. We finally show equivalence this experiment Fresnel diffraction edge.
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