1k citations · 3.2k across the 40 of their papers we have counts for
5 papers · 1 filter
Foil-based atom chip for Bose-Einstein condensates
C. J. Vale, B. Upcroft, M. J. Davis +2
We describe a novel method of fabricating atom chips that are well suited to the production and manipulation of atomic Bose-Einstein condensates. Our chip was created using a silve…
Laser frequency locking by direct measurement of detuning
A. Ratnapala, C. J. Vale, A. G. White +3
We present a new method of laser frequency locking in which the feedback signal is directly proportional to the detuning from an atomic transition, even at detunings many times the…
Analysis of dynamical tunnelling experiments with a Bose-Einstein condensate
Winfried K. Hensinger, Amaury Mouchet, Paul S. Julienne +3
Dynamical tunnelling is a quantum phenomenon where a classically forbidden process occurs, that is prohibited not by energy but by another constant of motion. The phenomenon of dyn…
Optical measurement of torque exerted on an elongated object by a non-circular laser beam
Simon J. Parkin, Timo A. Nieminen, Norman R. Heckenberg +1
We have developed a scheme to measure the optical torque, exerted by a laser beam on a phase object, by measuring the orbital angular momentum of the transmitted beam. The experime…
Optical microrheology using rotating laser-trapped particles
Alexis I. Bishop, Timo A. Nieminen, Norman R. Heckenberg +1
We demonstrate an optical system that can apply and accurately measure the torque exerted by the trapping beam on a rotating birefringent probe particle. This allows the viscosity…