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Piezospectroscopic measurement of high-frequency vibrations in a pulse-tube cryostat

Louchet-Chauvet, A; Ahlefeldt, Rose; Chaneliere, Thierry

Description

Vibrations in cryocoolers are a recurrent concern to the end user. They appear in different parts of the acoustic spectrum depending on the refrigerator type, Gifford McMahon or pulse-tube, and with a variable coupling strength to the physical system under interest. Here, we use the piezospectroscopic effect in rare-earth doped crystals at a low temperature as a high resolution, contact-less probe for the vibrations. With this optical spectroscopic technique, we obtain and analyze the vibration...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/205643
Source: Review of Scientific Instruments
DOI: 10.1063/1.5080086
Access Rights: Open Access

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