Abstract

Magnetic microtraps with current-carrying wires have initially been proposed in order to reach field configurations with high gradients [1]. In our first demonstration [2] of an electromagnetic microtrap, we used a lithographically created wire on a substrate at room temperature to realize a quadrupole trap. Transverse gradients of 1600 G/cm were achieved with only 2A of current flowing through the wire More recently, we have extended this technique to loffe traps, which are more suitable for achieving long lifetimes at low temperatures.

© 2000 IEEE