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arXiv · 0711.0067

High-precision measurement of hyperfine structure in the $D$ lines of alkali atoms

Dipankar Das·Vasant Natarajan
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Abstract

We have measured hyperfine structure in the first-excited $P$ state ($D$ lines) of all the naturally-occurring alkali atoms. We use high-resolution laser spectroscopy to resolve hyperfine transitions, and measure intervals by locking the frequency shift produced by an acousto-optic modulator to the difference between two transitions. In most cases, the hyperfine coupling constants derived from our measurements improve previous values significantly.

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Dipankar Das, Vasant Natarajan. 2007-11-01. High-precision measurement of hyperfine structure in the $D$ lines of alkali atoms. https://doi.org/10.1088/0953-4075/41/3/035001

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