Stretchable photonic crystal cavity with wide frequency tunability

Chun L. Yu, Hyunwoo Kim, Nathalie De Leon, Ian W. Frank, Jacob T. Robinson, Murray McCutcheon, Mingzhao Liu, Mikhail D. Lukin, Marko Loncar, Hongkun Park

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


We report a new approach for realizing a flexible photonic crystal (PC) cavity that enables wide-range tuning of its resonance frequency. Our PC cavity consists of a regular array of silicon nanowires embedded in a polydimethylsiloxane (PDMS) matrix and exhibits a cavity resonance in the telecommunication band that can be reversibly tuned over 60 nm via mechanical stretching - a record for two-dimensional (2D) PC structures. These mechanically reconfigurable devices could find potential applications in integrated photonics, sensing in biological systems, and smart materials.

Original languageEnglish (US)
Pages (from-to)248-252
Number of pages5
JournalNano Letters
Issue number1
StatePublished - Jan 9 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Mechanical Engineering
  • Bioengineering
  • General Materials Science


  • Photonic crystal
  • flexible device
  • nanowire
  • resonance frequency tuning


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