4.5 Article

Thermorefractive noise in whispering gallery mode microresonators: Analytical results and numerical simulation

Journal

PHYSICS LETTERS A
Volume 382, Issue 33, Pages 2265-2268

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2017.04.043

Keywords

Whispering gallery modes; Thermal noises; Thermorefraction; Finite element modeling; Fluctuation-dissipation theorem

Funding

  1. Russian Foundation for Basic Research [17-02-00522]
  2. National Science Foundation [PHY-1305863]

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We demonstrate numerical finite element simulation of thermorefractive noise in whispering gallery mode cavities and compare the results with known experimental data and analytical derivations. We show that thermal interaction of the microcavity with environment is very significant, making particular geometry significant for the noise spectral density at low frequencies. (C) 2017 Elsevier B.V. All rights reserved.

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