When it comes to experiments requiring low temperatures, high magnetic fields and low vibrations, the range of cryostats that can be used is not exactly huge. If, moreover, a large sample area is required, the only available choice is OptiCool.
OptiCool is a powerful optical cryostat that can be directly mounted on an optical table. Instead of the usual superconducting solenoid, it features a 7 Tesla split-coil magnet. This allows optical access both through a top window and several side windows and provides for a generous, free sample space with a diameter of 89 mm.
Common cryogenic sample stations offer a field strength of just up to 3 Tesla and limited optical access. The OptiCool sample space is large enough to accommodate four XYZ positioning systems and a stationary sample holder. Thus, it can easily be expanded to provide an automated sample station with 7 Tesla field strength. The low vibration level of only 10 nm (peak-to-peak) ensures that the measurement tips do not lose contact with the sample. The contact pressure of a commercially available cryogenic positioner is significantly lower than that of a manual arm as used in cryogenic sample stations.