Temperature effects on optical resonances in single-mode circular ring and squircular resonators

Prabodh Panindre, Sunil Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Optical dielectric microresonators have been extensively studied due to their potential applications in optical sensing and measurements, and as optical interconnects. Although sensitive to temperature variations, the effect on temperature on their performance is often overlooked. In the present study the sensitivity of resonance to temperature arising from thermal expansion or contraction based change in physical path length, and minute changes in dielectric material and surrounding refractive indices is examined. The multiphysics finite element approach used in this study combines the heat transfer in solids with solid mechanics to understand the micro-level deformation of optical resonator due to thermal heating. This is coupled with electromagnetic frequency domain analysis of Maxwell's equations with temperature dependent refractive indices to quantify the change in resonant frequency. It is found that the temperature induced change in refractive index of the resonator material primarily drives the change in resonant frequency.

Original languageEnglish (US)
Title of host publicationHeat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791857892
DOIs
StatePublished - 2017
EventASME 2017 Heat Transfer Summer Conference, HT 2017 - Bellevue, United States
Duration: Jul 9 2017Jul 12 2017

Publication series

NameASME 2017 Heat Transfer Summer Conference, HT 2017
Volume2

Other

OtherASME 2017 Heat Transfer Summer Conference, HT 2017
CountryUnited States
CityBellevue
Period7/9/177/12/17

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

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