title: Modular cryostat for ion trapping with surface-electrode ion traps.
abstract: We present a simple cryostat purpose built for use with surface-electrode ion traps, designed around an affordable, large cooling power commercial pulse tube refrigerator. A modular vacuum enclosure with a single vacuum space facilitates interior access and enables rapid turnaround and flexibility for future modifications. Long rectangular windows provide nearly 360° of optical access in the plane of the ion trap, while a circular bottom window near the trap enables NA 0.4 light collection without the need for in-vacuum optics. We evaluate the system's mechanical and thermal characteristics and we quantify ion trapping performance by trapping (40)Ca(+), finding small stray electric fields, long ion lifetimes, and low ion heating rates.
authors: School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA. grahame.vittorini@gatech.edu
authors: Grahame
authors: G
authors: Vittorini
authors: Kenneth
authors: K
authors: Wright
authors: Kenneth R
authors: KR
authors: Brown
authors: Alexa W
authors: AW
authors: Harter
authors: S Charles
authors: SC
authors: Doret