Saturated-absorption spectroscopy with low-power difference-frequency radiation

Year: 2000

Authors: Mazzotti D., De Natale P., Giusfredi G., Fort C., Mitchell J.A., Hollberg L.

Autors Affiliation: Department of Physics, Università di Firenze, Florence 50125, Italy; Istituto Nazionale di Ottica, Largo E. Fermi, 6 Florence 50125, Italy; European Laboratory for Non-linear Spectroscopy and Istituto Nazionale di Fisica della Materia, Florence 50125, Italy; National Institute for Standards and Technology, Boulder, Colorado 80303

Abstract: We report high-resolution saturated-absorption spectra recorded by use of a few microwatts of radiation generated in a single pass by difference-frequency mixing. These results were obtained without the use of buildup cavities for the nonlinear mixing or for the saturation spectroscopy. We show high-quality saturated-absorption signals for the fundamental rovibrational band of CO2 near 4.3 mu m. Convenient sources and frequency-conversion devices open new possibilities for sub-Doppler spectroscopy in the infrared. (C) 2000 Optical Society of America

Journal/Review: OPTICS LETTERS

Volume: 25      Pages from: 350  to: 352

KeyWords: Saturation spectroscopy, Absorption spectroscopy; Doppler effect; Radiation, Nonlinear optics
DOI: 10.1364/OL.25.000350

Citations: 30
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