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Applied of Integrated Optical Biosensor based on Combination of Photonic Crystal Micro-Cavity and Ring Resonator

광결정 공진기와 링 공진기의 공진특성 결합을 통한 바이오센서 응용

  • 김홍승 (중앙대학교 전자전기공학부) ;
  • 김두근 (한국광기술원 광융합시스템연구소) ;
  • 오금윤 (중앙대학교 전자전기공학부) ;
  • 이태경 (중앙대학교 전자전기공학부) ;
  • 최영완 (중앙대 전자전기공학부)
  • Received : 2011.03.09
  • Accepted : 2011.03.21
  • Published : 2011.04.01

Abstract

We propose a novel ring structure based on the stadium-shaped ring resonator (SSRR) with dual photonic crystal microcavity (DPCM) for biosensor and analyzed the sensing characteristics. The Q-factor of the photonic crystal microcavity (PCM) can be significantly enhanced when the PCM or DPCM has the same resonance condition as the SSRR. The simulation results show that the Q-factor of the SRR with DPCM was increased by three times in comparison with single PCM structure. We also defined a mutual interference between two PCMs. Assuming a detectable spectral resolution of 10 picometers, a refractive index resolution of $3.03\times10-5$ can be measured on the SSRR-DPCM.

Keywords

References

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