Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing

Xinwei Lan; Baokai Cheng; Qingbo Yang; Jie Huang; Hanzheng Wang; Yinfa Ma; Honglan Shi; Hai Xiao

doi:10.1016/j.snb.2013.11.046

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$Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing$

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Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing

Xinwei Lan, Baokai Cheng, Qingbo Yang, Jie Huang, Hanzheng Wang, Yinfa Ma, Honglan Shi and Hai Xiao

Sensors and actuators. B, Chemical, Vol.193, pp.95-99

03/31/2014

DOI: https://doi.org/10.1016/j.snb.2013.11.046

Handle:

https://hdl.handle.net/20.500.12741/rep:10844

PMCID: PMC3932360

PMID: 24574579

Abstract

Extraordinary optical transmission

Optical fiber sensor

Refractive index sensor

Surface plasmon resonance

Fiber optic probes for chemical sensing based on the extraordinary optical transmission (EOT) phenomenon are designed and fabricated by perforating subwavelength hole arrays on the gold film coated optical fiber endface. The device exhibits a red shift in response to the surrounding refractive index increases with high sensitivity, enabling a reflection-based refractive index sensor with a compact and simple configuration. By choosing the period of hole arrays, the sensor can be designed to operate in the near infrared telecommunication wavelength range, where the abundant sources and detectors are available for easy instrumentation. The new sensor probe is demonstrated for refractive index measurement using refractive index matching fluids. The sensitivity reaches 573nm/RIU in the 1.333–1.430 refractive index range.

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Title: Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing
Creators: Xinwei Lan - Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Baokai Cheng - Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Qingbo Yang - Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA
Jie Huang - Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Hanzheng Wang - Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Yinfa Ma - Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA
Honglan Shi - Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA
Hai Xiao - Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Academic Unit: Coll of NSM Deans Ofc
Publisher: Elsevier B.V
Publication Details: 03/31/2014
Identifiers: 99257893902101671; https://hdl.handle.net/20.500.12741/rep:10844; https://doi.org/10.1016/j.snb.2013.11.046
Language: English