Temperature stabilization of optofluidic photonic crystal cavities

Christian Karnutsch, Cameron L. C. Smith, Alexandra Graham, Snjezana Tomljenovic-Hanic, Ross McPhedran, Benjamin J. Eggleton, Liam O'Faolain, Thomas F. Krauss, Sanshui Xiao, N. Asger Mortensen

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We present a principle for the temperature stabilization of photonic crystal (PhC) cavities based on optofluidics. We introduce an analytic method enabling a specific mode of a cavity to be made wavelength insensitive to changes in ambient temperature. Using this analysis, we experimentally demonstrate a PhC cavity with a quality factor of Q approximate to 15 000 that exhibits a temperature-independent resonance. Temperature-stable cavities constitute a major building block in the development of a large suite of applications from high-sensitivity sensor systems for chemical and biomedical applications to microlasers, optical filters, and switches.

Original languageEnglish
Number of pages3
JournalApplied Physics Letters
Volume94
Issue number23
DOIs
Publication statusPublished - 8 Jun 2009

Keywords

  • photonic crystals
  • REFRACTIVE-INDEX
  • SILICON
  • WAVELENGTH
  • SENSOR
  • NANOCAVITIES
  • LIGHT

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