High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation
Atomic Physics
2019-11-21 v1
Abstract
High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectroscopy, based on two such pulses derived from a frequency-comb laser, enables us to observe phase effects in this process with a few mrad precision. As a result, we could perform the most accurate spectroscopic measurement based on light from HHG, illustrated with a determination of the transition at 110 nm in Xe. We improve its relative accuracy times to a value of . This is 3.6 times better than shown before involving HHG, and promising to enable spectroscopy of He for fundamental tests.
Cite
@article{arxiv.1911.08843,
title = {High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation},
author = {L. S. Dreissen and C. Roth and E. L. Gründeman and J. J. Krauth and M. Favier and K. S. E. Eikema},
journal= {arXiv preprint arXiv:1911.08843},
year = {2019}
}