High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules
Atomic Physics
2017-09-07 v1 Chemical Physics
Abstract
We demonstrate cryogenic buffer-gas cooling of gas-phase methyltrioxorhenium (MTO). This molecule is closely related to chiral organometallic molecules where the parity-violating energy differences between enantiomers may be measurable. The molecules are produced with a rotational temperature of approximately 6~K by laser ablation of an MTO pellet inside a cryogenic helium buffer gas cell. Facilitated by the low temperature, we demonstrate absorption spectroscopy of the 10.2~m antisymmetric Re=O stretching mode of MTO with a resolution of 8~MHz and a frequency accuracy of 30~MHz. We partially resolve the hyperfine structure and measure the nuclear quadrupole coupling of the excited vibrational state.
Keywords
Cite
@article{arxiv.1607.08741,
title = {High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules},
author = {Sean Tokunaga and R. J. Hendricks and M. Tarbutt and B Darquié},
journal= {arXiv preprint arXiv:1607.08741},
year = {2017}
}