title: Quantum beats in forward scattering: subnanosecond studies with a mode-locked dye laser.
abstract: Time-resolved polarization spectroscopy of transient coherent superpositions of atomic substates is extended to the picosecond time scale by using a synchronously pumped mode-locked dye laser. As a first demonstration, hyperfine beats in the sodium D(1) and D(2), lines were resolved. The ground-state splitting could be determined with an accuracy of better than 10(-3).
authors.forename: H
authors.initials: H
authors.lastname: Harde
authors.forename: H
authors.initials: H
authors.lastname: Burggraf
authors.forename: J
authors.initials: J
authors.lastname: Mlynek
authors.forename: W
authors.initials: W
authors.lastname: Lange