We present a theoretical analysis and the results of measurements of thermorefractive noise in microcavities. These measurements may be considered direct observations of fundamental fluctuations of temperature in solid media. Our experimentally measured noise spectra are in agreement with our theoretical model.
© 2004 Optical Society of America
(030.4070) Coherence and statistical optics : Modes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(160.6030) Materials : Silica
(230.5750) Optical devices : Resonators
Michael L. Gorodetsky and Ivan S. Grudinin, "Fundamental thermal fluctuations in microspheres," J. Opt. Soc. Am. B 21, 697-705 (2004)