For the artifact discussed here, the Cr atomic beam
was mechanically collimated with a 0.
This represents a first demonstration of a significant step forward in atomic beam
Because of the velocity spread in the atomic beam
, this separation is not perfect, so some atoms in other [m.
More recently, a second team has observed lasing without inversion in a sodium atomic beam
In other words, the atomic beam
acts as a kind of cleaning agent.
In one such device, a calcium atomic beam
is divided into four wave paths by two laser beams perpendicular to the atoms.
Ramsey's approach of imposing two separate, oscillating electromagnetic fields on an atomic beam
to induce energy-level transitions formed the basis for the cesium atomic clock, which sets the present time standard.
Grisham is a world leader in the development of high-power atomic beams
based on the production of the unusual negatively charged hydrogen ion.
They also suggest ways of constructing such gates out of quantum dots, atomic beams
, or trapped ions interacting with laser beams.
Metcalf predicts this method wil not only improve the quality of experiments involving atomic beams
, atomic fountains (SN: 8/19/89, p.
This should yield an effect about 1,000 times larger, but experimentalists have not yet devised a way to produce atomic beams
with the right characteristics for such an experiment.