1. Optical Cryostat Realizations at Absolut System.
- Author
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Trollier, T., Ravex, A., and Tanchon, J.
- Subjects
- *
CRYOSTATS , *TEMPERATURE control , *COOLING , *PULSE tube refrigerators , *OPTICS , *CRYOGENICS , *LOW temperature engineering - Abstract
This paper describes two kinds of optical cryostats designed and manufactured at Absolut System. The first one makes use of pressurized LN2 for temperature control of a sample holder in the 80 K - 470 K temperature range. An optical window is implemented above the sample holder to allow for rugosity and 3D distortion of heterogeneous semicon sample assemblies on a wafer. The second one makes use of CRYOMECH remote motor type pulse tube cryocoolers for temperature control of the sample holder in the 3 K - 300 K temperature range. In this type of cryostats, particular attention has been paid to reduce the vibrations exported by the cooler. These 4 K ultra low vibration cryostats are used for characterization of samples via optical windows. Both designs will be presented and the performance reported. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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