Laser stabilisation to neutral Yb in a discharge with polarization enhanced frequency modulation spectroscopy
Abstract
Isotope selective optical excitation of atoms is important for experiments with neutral atoms, metrology, and work with trapped ions, including quantum information processing. Polarization-enhanced absorption spectroscopy is used to frequency stabilise a tunable external cavity laser diode system at 398.9 nm for isotope selective photoionization of neutral Yb atoms. This spectroscopy technique is used to measure isotope resolved dispersive features from transitions within a see through configuration Ytterbium hollow-cathode discharge lamp. This Doppler-free dichroic polarization spectroscopy is realised by retro-reflecting a laser beam through the discharge and analysing the polarization dependent absorption with balanced detection. The spectroscopy signal is recovered using lock-in detection of frequency modulation induced by current modulation of the external cavity laser diode. Here, we show the use of polarization-enhanced absorption spectroscopy for isotope selectively loading of Yb, Yb, or Yb ions into an RF Paul trap.
Keywords
Cite
@article{arxiv.2006.12012,
title = {Laser stabilisation to neutral Yb in a discharge with polarization enhanced frequency modulation spectroscopy},
author = {Valdis Blums and Jordan Scarabel and Kenji Shimizu and Moji Ghadimi and Steven C. Connell and Sylvi Händel and Benjamin G. Norton and Elizabeth M. Bridge and David Kielpinski and Mirko Lobino and Erik W. Streed},
journal= {arXiv preprint arXiv:2006.12012},
year = {2020}
}
Comments
7 pages, 7 figures, 2 tables, 48 references. Submitted to Review of Scientific Instruments