Physics – Optics
Scientific paper
2011-05-31
Opt.Express 19:14495-14501,2011
Physics
Optics
Scientific paper
10.1364/OE.19.014495
Temperature measurement with nano-Kelvin resolution is demonstrated at room temperature, based on the thermal dependence of an optical crystal anisotropy in a high quality whispering gallery resonator. As the resonator's TE and TM modes frequencies have different temperature coefficients, their differential shift provides a sensitive measurement of the temperature variation, which is used for active stabilization of the temperature.
Baumgartel L. M.
Grudinin Ivan S.
Strekalov Dmitry V.
Thompson Richard Jule Jr.
Yu Nengkun
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