Investigation of strain sensing effect in modified single-defect photonic crystal nanocavity

Bui Thanh Tung, Dzung Viet Dao, Taro Ikeda, Yoshiaki Kanamori, Kazuhiro Hane, Susumu Sugiyama

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


This paper reports the theoretical and experimental investigations on the strain sensing effect of a two dimensions (2D) photonic crystal (PhC) nanocavity resonator. By using the finite element method (FEM) and finite difference time domain (FDTD) simulations, the strain sensitivity of a high quality factor PhC nanocavity was calculated. Linear relationships between the applied strain and the shift in the resonant wavelength of the cavity were obtained. A single-defect silicon (Si) PhC cavity was fabricated, and measurements of the strain sensitivity were performed. Good agreement between the experimental and simulation results was observed.

Original languageEnglish
Pages (from-to)8821-8829
Number of pages9
JournalOptics Express
Issue number9
Publication statusPublished - 2011 Apr 25

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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