419 citations · 4.3k across the 92 of their papers we have counts for
6 papers · 1 filter
Measurement of the lowest millimetre-wave transition frequency of the CH radical
S. Truppe, R. J. Hendricks, E. A. Hinds +1
The CH radical offers a sensitive way to test the hypothesis that fundamental constants measured on earth may differ from those observed in other parts of the universe. The startin…
A search for varying fundamental constants using Hz-level frequency measurements of cold CH molecules
S. Truppe, R. J. Hendricks, S. K. Tokunaga +5
Many modern theories predict that the fundamental constants depend on time, position, or the local density of matter. We develop a spectroscopic method for pulsed beams of cold mol…
Laser cooling and slowing of CaF molecules
V. Zhelyazkova, A. Cournol, T. E. Wall +5
We demonstrate slowing and longitudinal cooling of a supersonic beam of CaF molecules using counter-propagating laser light resonant with a closed rotational and almost closed vibr…
Stochastic multi-channel lock-in detection
J J Hudson, M R Tarbutt, B E Sauer +1
High-precision measurements benefit from lock-in detection of small signals. Here we discuss the extension of lock-in detection to many channels, using mutually orthogonal modulati…
Characterization of a cryogenic beam source for atoms and molecules
N. E. Bulleid, S. M. Skoff, R. J. Hendricks +3
We present a combined experimental and theoretical study of beam formation from a cryogenic buffer gas cell. Atoms and molecules are loaded into the cell by laser ablation of a tar…
Design for a fountain of YbF molecules to measure the electron's electric dipole moment
M. R. Tarbutt, B. E. Sauer, J. J. Hudson +1
We propose an experiment to measure the electric dipole moment of the electron using ultracold YbF molecules. The molecules are produced as a thermal beam by a cryogenic buffer gas…