Two-photon fourier spectroscopy with femtosecond light pulses

Year: 1997

Authors: Bellini M., Bartoli A., Hänsch T.W.

Autors Affiliation: Europ. Lab. for Non-Lin. Spectrosc., Department of Physics, University of Florence, L.go E. Fermi, 2, I-50125 Firenze, Italy; Max-Planck-Inst. F. Quantenoptik, D-85748 Garching, Germany

Abstract: We demonstrate a Fourier spectrometer that uses intense ultrashort laser pulses. By exciting the 6S1/2-8S1/2 two-photon transition in atomic cesium vapor, we are able to measure the small hyperfine splitting of the 8S1/2 excited state. This technique, combining a high spectral resolution with the high peak intensities available to femtosecond laser systems, may offer intriguing opportunities for the study of multiphoton transitions and for spectroscopy in the short-wavelength region.

Journal/Review: OPTICS LETTERS

Volume: 22 (8)      Pages from: 540  to: 542

KeyWords: Coherence
DOI: 10.1364/OL.22.000540

Citations: 70
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