Abstract
The coherent interaction of narrowband Fourier-transform limited nanosecond laser pulses with gas phase molecular systems has attracted increasing interest during the last years. It can lead to a nearly 100% population transfer efficiency from an initial to a final state in a lambda-type three-level system using the Stimulated Raman Rapid Adiabatic Passage (STIRAP) method.1 This high transfer efficiency cannot be explained by a rate equation approach often used in incoherent Stimulated Emission Pumping (SEP) experiments.
© 1994 IEEE
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