title: False estimates of stimulated Raman pumping efficiency caused by the optical Stark effect.
abstract: One technique for measuring the fraction of molecules pumped to the excited state in stimulated Raman pumping (SRP) is to record the depletion of molecules in the lower state by resonance enhanced multiphoton ionization (REMPI). The presence of electric fields on the order of 10(7) V/cm arising from the pulsed SRP laser beams is sufficient to shift the line position of the REMPI transition to such an extent that the estimate of the pumping efficiency is overestimated unless this shift is accounted for.
authors.affiliation: Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA.
authors.forename: N C-M
authors.initials: NC
authors.lastname: Bartlett
authors.forename: J
authors.initials: J
authors.lastname: Jankunas
authors.forename: R N
authors.initials: RN
authors.lastname: Zare