Tunable two-dimensional photonic crystal couplers made of dielectric elastomer inclusions

Chun Chih Wang, Lien Wen Chen

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We propose a tunable directional coupler based on a two-dimensional photonic crystal made of dielectric elastomer rods embedded in air background. In the interaction region, the inclusions are a dielectric elastomer cylindrical actuator made of a hollow cylinder sandwiched between two compliant electrodes. By applying a voltage between the compliant electrodes, the radial strain of the silicon-made actuator and the coupling characteristics of the photonic crystal coupler are investigated. The coupling length of the photonic crystal coupler depends on the voltage applied between the electrodes, which is analyzed by the plane wave expansion method. Due to the radial strain of the dielectric elastomer under external voltage, the tunable photonic crystal coupler is realized. Numerical simulations obtained by the finitedifference time-domain method confirmed the feasibility of the tunable photonic crystal coupler.

Original languageEnglish
Pages (from-to)3452-3457
Number of pages6
JournalApplied optics
Volume49
Issue number18
DOIs
Publication statusPublished - 2010 Jun 20

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Tunable two-dimensional photonic crystal couplers made of dielectric elastomer inclusions'. Together they form a unique fingerprint.

Cite this