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arXiv · 0706.4005

Absolute frequency measurements for hyperfine structure determination of the R(26) 62-0 transition at 501.7 nm in molecular iodine

Andrei Goncharov·Olivier Lopez·Anne Amy·Frédéric Du Burck
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Abstract

The absolute frequencies of the hyperfine components of the R(26) 62-0 transition in molecular iodine at 501.7 nm are measured for the first time with an optical clockwork based on a femtosecond laser frequency comb generator. The set-up is composed of an Ar+ laser locked to a hyperfine component of the R(26) 62-0 transition detected in a continuously pumped low-pressure cell (0.33 Pa). The detected resonances show a linewidth of 45 kHz (half-width at half-maximum). The uncertainty of the frequency measurement is estimated to be 250 Hz.

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Andrei Goncharov, Olivier Lopez, Anne Amy, Frédéric Du Burck. 2007-06-27. Absolute frequency measurements for hyperfine structure determination of the R(26) 62-0 transition at 501.7 nm in molecular iodine. https://doi.org/10.1088/0026-1394/44/5/003

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