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Line shape measurements of rubidium 5S-7S two-photon transition

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, , Citation P Morzyński et al 2014 J. Phys.: Conf. Ser. 548 012023 DOI 10.1088/1742-6596/548/1/012023

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1 Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudzia̧dzka 5, PL-87-100 Toruń, Poland

2 Institute of Physics, Faculty of Physics, Astronomy and Informatics, Jagiellonian University, Reymonta 4, PL-30-059 Kraków, Poland

3 Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, PL-00-681 Warsaw, Poland

4 Institute of Physics, University of Opole, Oleska 48, PL-45-052 Opole, Poland

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1742-6596/548/1/012023

Abstract

We report the use of a digital lock to measure the line profile and center frequency of rubidium 5S-7S two-photon transitions with a cw laser referenced to an optical frequency comb. The narrow, two-photon transition, 5S-7S (760 nm), insensitive to first-order in a magnetic field, is a promising candidate for frequency reference.

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10.1088/1742-6596/548/1/012023