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Contrast Saturation Resonances in the Absorption Band of Rubidium Molecules |
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| Authors: | Vladimir A Sautenkov Sergey A Saakyan Alexander M Akulshin Mikhail A Gubin Vladimir N Kuliasov Boris B Zelener |
| Institution: | 1. Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya Street 13, Bd. 2, Moscow, 125412, Russia 2. P. N. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii Prospect 53, Moscow, 119991, Russia 3. Center for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, PO Box 218, HAWTHORN VIC 3122, Melbourne, Australia 4. S. I. Vavilov State Optical Institute, Birzhevaya Line 12, St. Petersburg, 199034, Russia 5. National Research Nuclear University “MEPhI”, Kashirskoye Chaussee 31, Moscow, 115409, Russia |
| Abstract: | We study Doppler-free saturation resonances in the absorption band $ {{\mathrm{B}}^1}{\Pi_{\mathrm{u}}}-{{\mathrm{X}}^1}\Sigma_{{^{\mathrm{g}}}}^{+} $ of rubidium diatomic molecules in the frequency range near the D2 line of lithium atoms (671 nm). We observe contrast saturation resonances and record a variation in the laser light transmission of 4% due to optical saturation. The large optical nonlinearities in the molecular diatomic gas can be used for investigating the four-wave mixing and other nonlinear effects. |
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