Single beam atom trap in the hollow mirror systems and its applications

Wonho Jhe

K. I. Lee, Jiho Kim, Heung‐Ryoul Noh +1 more

We present a novel and simple magneto-optical trap in pyramidal and in conical hollow mirrors, using a single beam. A diode laser having modulation sidebands at microwaves is used for cooling, trapping, and repumping of rubidium atoms in a vapor cell. When the laser is circularly polarized and sent into the hollow region, three pairs of counterpropagating beams are automatically produced therein that have the same polarization configuration as that of a conventional six-beam magneto-optical trap. The fluorescence by the trapped atoms and its mirror image are observed simultaneously. This system may be useful for atom-manipulation applications such as gravitational atom traps and atom waveguides.

Heung‐Ryoul Noh, Wonho Jhe

Kwanil I. Lee, Jongan I. Kim, Heung-Ruoul Noh +1 more

We present a novel and simple atom trap in a pyramidal and a conical hollow mirror cavity and its application to atom optics. Using a conical axicon mirror trap, we also have produced a pulsed cold atomic beam extracted from the trapped atoms. We point out several novel features of our cold atomic beams.

J. A. Kim, K. I. Lee, Hyunchul Nha +2 more

We present a novel and simple vapour-cell magneto-optical atom trap in a pyramidal and a conical hollow mirror cavity. A single laser beam having modulation sidebands at microwaves is used for cooling, trapping and repumping of rubidium atoms. When the laser is circularly polarized and sent into the hollow region, three pairs of counterpropagating beams are automatically produced therein, having the same polarization configuration as in the conventional six beam magneto-optical trap. The precooled atom sources thus produced may be used to obtain much colder and denser atoms for study of their quantum statistical properties.

Chung-Yu Shih, Michael J. Gibbons, Michael Chapman