Enhancement of chemical sensing capability in a photonic crystal fiber with a hollow high index ring defect at the center

Jiyoung Park, Sejin Lee, Soan Kim, Kyunghwan Oh

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

A new type of index-guided photonic crystal fiber is proposed to enhance chemical sensing capability by introducing a hollow high index ring defect that consists of the central air hole surrounded by a high index GeO2 doped SiO2 glass ring. Optical properties of the fundamental guided mode were numerically analyzed using the full-vector finite element method varying the design parameters of both the defects in the center and the hexagonal air-silica lattice in the cladding. Enhanced evanescent wave interaction in the holey region and lower confinement loss by an order of magnitude were achieved simultaneously, which shows a high potential in hyper sensitive fiber-optic chemical sensing applications.

Original languageEnglish
Pages (from-to)1921-1929
Number of pages9
JournalOptics Express
Volume19
Issue number3
DOIs
Publication statusPublished - 2011 Jan 31

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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