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Opt Lett. 2013 Nov 15;38(22):4581-4. doi: 10.1364/OL.38.004581.

Absolute frequency measurement of rubidium 5S-7S two-photon transitions.

Optics letters

Piotr Morzyński, Piotr Wcisło, Piotr Ablewski, Rafał Gartman, Wojciech Gawlik, Piotr Masłowski, Bartłomiej Nagórny, Filip Ozimek, Czesław Radzewicz, Marcin Witkowski, Roman Ciuryło, Michał Zawada

PMID: 24322079 DOI: 10.1364/OL.38.004581

Abstract

We report the absolute frequency measurements of rubidium 5S-7S two-photon transitions with a cw laser digitally locked to an atomic transition and 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. The performed tests yielded more accurate transition frequencies than previously reported.

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