212 citations · 860 across the 11 of their papers we have counts for
11 papers
Ultracold molecules for measuring the electron's electric dipole moment
J. Lim, J. R. Almond, M. A. Trigatzis +5
We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100 K. This is a key step towards a measurement of the electron's electric dipole moment u…
Magnetic trapping and coherent control of laser-cooled molecules
H. J. Williams, L. Caldwell, N. J. Fitch +5
We demonstrate coherent microwave control of the rotational, hyperfine and Zeeman states of ultracold CaF molecules, and the magnetic trapping of these molecules in a single, selec…
Characteristics of a magneto-optical trap of molecules
H. J. Williams, S. Truppe, M. Hambach +5
We present the properties of a magneto-optical trap (MOT) of CaF molecules. We study the process of loading the MOT from a decelerated buffer-gas-cooled beam, and how best to slow…
An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
S. Truppe, H. J. Williams, N. J. Fitch +5
Using frequency-chirped radiation pressure slowing, we precisely control the velocity of a pulsed CaF molecular beam down to a few m/s, compressing its velocity spread by a factor…
Enhanced oscillation lifetime of a Bose-Einstein condensate in the 3D/1D crossover
B. Yuen, I. Barr, J. P. Cotter +2
We have measured the damped motion of a trapped Bose-Einstein condensate, oscillating with respect to a thermal cloud. The cigar-shaped trapping potential provides enough transvers…
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…
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…
Stark deceleration of CaF molecules in strong- and weak-field seeking states
T. E. Wall, J. F. Kanem, J. M. Dyne +4
We report the Stark deceleration of CaF molecules in the strong-field seeking ground state and in a weak-field seeking component of a rotationally-excited state. We use two types o…
Doppler-free laser spectroscopy of buffer gas cooled molecular radicals
S. M. Skoff, R. J. Hendricks, C. D. J. Sinclair +5
We demonstrate Doppler-free saturated absorption spectroscopy of cold molecular radicals formed by laser ablation inside a cryogenic buffer gas cell. By lowering the temperature, c…
Nonlinear dynamics in an alternating gradient guide for neutral particles
M. R. Tarbutt, E. A. Hinds
Neutral particles can be guided and focussed using electric field gradients that focus in one transverse direction and defocus in the other, alternating between the two directions.…
Alternating Gradient Focusing and Deceleration of Polar Molecules
Hendrick L. Bethlem, M. R. Tarbutt, Jochen Küpper +4
Beams of polar molecules can be focused using an array of electrostatic lenses in alternating gradient (AG) configuration. They can also be accelerated or decelerated by applying a…