Measurement of the $^{20-22}$Ne $^3$P$_2$-$^3$D$_3$ transition isotope shift using a single, phase modulated laser beam

TL;DR

This paper presents a simple, accurate method to measure isotope shifts in neon using a single, phase-modulated laser, achieving the most precise measurement to date of the $^{20-22}$Ne isotope shift.

Contribution

The authors introduce a novel technique for precise isotope shift measurement with a single laser, simplifying the process and improving accuracy.

Findings

Measured the $^{20-22}$Ne isotope shift as 1626.264(79) MHz.

Achieved the most accurate measurement of this isotope shift to date.

Demonstrated the effectiveness of phase modulation in laser spectroscopy.

Abstract

We develop a simple technique to accurately measure frequency differences between far lying resonances in a spectroscopy signal using a single laser. This technique was used to measure the isotope shift of the cooling transition of metastable neon for the result of $1626.264(79)$ MHz. The most accurate determination of this value to date.