Sub-Doppler modulation spectroscopy of potassium for laser stabilization
Atomic Physics
2012-05-03 v2 Instrumentation and Detectors
Abstract
We study modulation spectroscopy of the potassium D2 transitions at 766.7 nm. The vapour pressure, controlled by heating a commercial reference cell, is optimized using conventional saturated absorption spectroscopy. Subsequent heterodyne detection yields sub-Doppler frequency discriminants suitable for stabilizing lasers in experiments with cold atoms. Comparisons are made between spectra obtained by direct modulation of the probe beam, and those using modulation transfer from the pump via nonlinear mixing. Finally, suggestions are made for further optimization of the signals.
Cite
@article{arxiv.1112.4998,
title = {Sub-Doppler modulation spectroscopy of potassium for laser stabilization},
author = {L. Mudarikwa and K. Pahwa and J. Goldwin},
journal= {arXiv preprint arXiv:1112.4998},
year = {2012}
}
Comments
14 pages, 9 figures; published version, with changes according to referee responses