Magnetic Trapping of Cold Methyl Radicals

Magnetic trapping of cold bromine atoms.

Magnetic trapping of bromine atoms at temperatures in the millikelvin regime is demonstrated for the first time. The atoms are produced by photodissociation of Br2 molecules in a molecular beam. The lab-frame velocity of Br atoms is controlled by the wavelength and polarization of the photodissociation laser. Careful selection of the wavelength results in one of the pair of atoms having suffici...

Magnetic trapping of a cold Rb-Cs atomic mixture

We present an apparatus for the study of an ultracold gaseous atomic mixture of Cs and Rb. The mixture is prepared using a double magneto-optical trap (MOT) system in which a two-species pyramid MOT acts as a source of cold atoms for a ‘science’ MOT. Measurements of the interspecies trap loss rate coefficients βRbCs and βCsRb in the science MOT are reported. After the initial MOT phase, atoms i...

Magnetic waveguide for trapping cold atom gases in two dimensions

Trapping cold molecular hydrogen.

Translationally cold H(2) molecules excited to non-penetrating |M(J)| = 3 Rydberg states of principal quantum number in the range 21-37 have been decelerated and trapped using time-dependent inhomogeneous electric fields. The |M(J)| = 3 Rydberg states were prepared from the X (1)Σ(+)(u)(v = 0, J = 0) ground state using a resonant three-photon excitation sequence via the B (1)Σ(+)(u)(v = 3, J = ...

Electromagnetic trapping of cold atoms

This review describes the methods of trapping cold atoms in electromagnetic fields and in the combined electromagnetic and gravity fields. We discuss first the basic types of the dipole radiation forces used for cooling and trapping atoms in the laser fields. We outline next the fundamentals of the laser cooling of atoms and classify the temperature limits for basic laser cooling processes. The...