Heterodyning of AlGaAs lasers: direct frequency measurement of the isotope shift in the oxygen atom

15 January 1992

journal article
Published by Optica Publishing Group in Optics Letters

Vol. 17 (2) , 148-150
https://doi.org/10.1364/ol.17.000148

Abstract

Two narrow-band extended-cavity semiconductor lasers are locked onto sub-Doppler resonances of the ⁵S₂−⁵P₁ transition at 777 nm in different isotopes of atomic oxygen. Mixing radiation from these lasers in a fast photodiode yields a direct measurement of the isotope shift.

Keywords

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