NIST logo

Publication Citation: Weak value thermostat with 0.2 mK precision

NIST Authors in Bold

Author(s): Patrick F. Egan; Jack A. Stone Jr;
Title: Weak value thermostat with 0.2 mK precision
Published: December 01, 2012
Abstract: A new laser-based thermostat sensitive to 0.2 mK at room temperature is reported. The method utilizes a fluid-filled prism and interferometric weak value amplification to sense nanoradian deviations of a laser beam: due to the high thermooptic coefficient of the fluid (colorless fluorocarbon), the deviation angle through the prism is sensitive to temperature. We estimate the daily stability of our device to be 0.2 mK which is limited by drifts in the apparatus, and the narrow 20 mK capture range is the price paid for the weak measurement.
Citation: Optics Letters
Volume: 37
Issue: 23
Pages: pp. 4991 - 4993
Keywords: Interferometry; Temperature; Thermo-optical materials; Prisms
Research Areas: Thermometry, Optical Metrology
DOI: http://dx.doi.org/10.1364/OL.37.004991  (Note: May link to a non-U.S. Government webpage)
PDF version: PDF Document Click here to retrieve PDF version of paper (459KB)