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Publication
Optics Letters
Paper
Doppler-free backward-fluorescence spectroscopy in vapors
Abstract
A new laser-spectroscopy technique, requiring neither a continuously tunable laser nor a tunable optical transition, is demonstrated. The method involves measuring the fluorescence antiparallel to the laser beam by a scanning Fabry-Perot interferometer. The resulting Doppler-free resomeasurement features a doubled-frequency separation between hyperfine transitions. © 1980, Optical Society of America.