High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules

29 Jul 2016  ·  Tokunaga Sean LPL, Hendricks R. J. CCM, Tarbutt M. CCM, Darquié B LPL ·

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~$\mu$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. read more

PDF Abstract
No code implementations yet. Submit your code now

Categories


Atomic Physics Chemical Physics