Surface plasmon resonance (SPR) infrared sensor based on D-shape photonic crystal fibers with ITO coatings

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

3 Scopus Citations
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Author(s)

  • Chao Liu
  • Jianwei Wang
  • Famei Wang
  • Weiquan Su
  • Lin Yang
  • Jingwei Lv
  • Guanglai Fu
  • Xianli Li
  • Qiang Liu
  • Tao Sun

Detail(s)

Original languageEnglish
Article number125496
Journal / PublicationOptics Communications
Volume464
Online published19 Feb 2020
Publication statusPublished - 1 Jun 2020

Abstract

A novel surface plasmon resonance sensor (SPR) based on D-shaped photonic crystal fiber (PCF) is designed for sensing low refractive indexes, and its performance is investigated numerically by the finite element method (FEM). Indium tin oxide (ITO) is chosen as the plasmonic materials to expand the operating wavelength range of the PCF-SPR sensor to the infrared region. Spectral sensitivities of 2000–15000 nm/RIU for refractive indexes of 1.22-1.33 are validated in the wavelength range of 1200–2250 nm,and the maximum amplitude sensitivity up to 442.47 RIU−1 is obtained at 2,010 nm with a high resolution of 6.67×10−6RIU. Therefore, the sensor can effectively monitor subtle variations of low refractive indexes and, has enormous commercial value for biomedical and organic detection and related applications.

Research Area(s)

  • Indium tin oxide (ITO), Low refractive index, PCF-SPR, Sensing

Citation Format(s)

Surface plasmon resonance (SPR) infrared sensor based on D-shape photonic crystal fibers with ITO coatings. / Liu, Chao; Wang, Jianwei; Wang, Famei; Su, Weiquan; Yang, Lin; Lv, Jingwei; Fu, Guanglai; Li, Xianli; Liu, Qiang; Sun, Tao; Chu, Paul K.

In: Optics Communications, Vol. 464, 125496, 01.06.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal