Lamb-peak spectrum of the HD (2-0) P(1) line
Atomic Physics
2020-05-08 v1
Abstract
A saturation spectroscopy measurement of the P(1) line of the () band in HD is performed in a sensitive cavity-enhanced optical setup involving frequency comb calibration. The spectral signature is that of a Lamb-peak, in agreement with a density-matrix model description involving 9 hyperfine components and 16 crossover resonances of -type. Comparison of the experimental spectra with the simulations yields a rovibrational transition frequency at 209,784,242,007 (20) kHz. Agreement is found with a first principles calculation in the framework of non-adiabatic quantum electrodynamics within 2, where the combined uncertainty is fully determined by theory.
Keywords
Cite
@article{arxiv.2005.03083,
title = {Lamb-peak spectrum of the HD (2-0) P(1) line},
author = {M. L. Diouf and F. M. J. Cozijn and K. -F. Lai and E. J. Salumbides and W. Ubachs},
journal= {arXiv preprint arXiv:2005.03083},
year = {2020}
}