High-Q Slot-Mode Photonic Crystal Nanobeam Cavity Biosensor With Optomechanically Enhanced Sensitivity

Erdil M., Ozer Y., Kocaman S.

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol.25, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25
  • Publication Date: 2019
  • Doi Number: 10.1109/jstqe.2018.2880592
  • Journal Name: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Biosensors, optomechanical feedback, sensitivity, slot cavity, GRAPHENE, NANOPARTICLES, NANOCAVITY
  • Middle East Technical University Affiliated: Yes

Abstract

A biosensor design based on a photonic crystal nanobeam cavity with an optomechanical positive feedback mechanism is proposed. Design of the cavity and optomechanical sensitivity enhancement method are numerically analyzed and the results show that fourfold improvement is possible without any degradation of the Q-factor.