High-precision spectroscopy with counterpropagating femtosecond pulses.

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Abstract

An experimental realization of high-precision direct frequency comb spectroscopy using counterpropagating femtosecond pulses on two-photon atomic transitions is presented. The Doppler broadened background signal, hampering precision spectroscopy with ultrashort pulses, is effectively eliminated with a simple pulse shaping method. As a result, all four 5S-7S two-photon transitions in a rubidium vapor are determined with both statistical and systematic uncertainties below 10
Original languageEnglish
Article number023007
JournalPhysical Review Letters
Volume111
Issue number2
DOIs
Publication statusPublished - 2013

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