Frequency locked micro disk resonator for real time and precise monitoring of refractive index

Liron Stern, Ilya Goykhman, Boris Desiatov, Uriel Levy

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We experimentally demonstrate a frequency modulation locked servo loop, locked to a resonance line of an on-chip microdisk resonator in a silicon nitride platform. By using this approach, we demonstrate real-time monitoring of refractive index variations with a precision approaching 10-7 RIU, using a moderate Q factor of 104. The approach can be applied for intensity independent, dynamic and precise index of refraction monitoring for biosensing applications.

Original languageEnglish
Pages (from-to)1313-1315
Number of pages3
JournalOptics Letters
Volume37
Issue number8
DOIs
StatePublished - 15 Apr 2012
Externally publishedYes

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