Surface plasmon resonance sensor based on&#x00A0;eccentric core photonic quasi-crystal fiber&#x00A0;with indium tin oxide

Qiang Liu; Jiudi Sun; Yudan Sun; Wei Liu; Famei Wang; Lin Yang; Chao Liu; Qingyu Liu; Qian Li; Zonghuan Ren; Tao Sun; Paul K. Chu

doi:10.1364/AO.58.006848

Applied Optics
Vol. 58,
Issue 25,
pp. 6848-6853
(2019)
•https://doi.org/10.1364/AO.58.006848

Surface plasmon resonance sensor based on eccentric core photonic quasi-crystal fiber with indium tin oxide

Qiang Liu, Jiudi Sun, Yudan Sun, Wei Liu, Famei Wang, Lin Yang, Chao Liu, Qingyu Liu, Qian Li, Zonghuan Ren, Tao Sun, and Paul K. Chu

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Qiang Liu, Jiudi Sun, Yudan Sun, Wei Liu, Famei Wang, Lin Yang, Chao Liu, Qingyu Liu, Qian Li, Zonghuan Ren, Tao Sun, and Paul K. Chu, "Surface plasmon resonance sensor based on eccentric core photonic quasi-crystal fiber with indium tin oxide," Appl. Opt. 58, 6848-6853 (2019)

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Table of Contents Category
- Fiber Optics, Fiber Sensors, and Optical Communications
Optics & Photonics Topics
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The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: July 2, 2019
- Revised Manuscript: August 4, 2019
- Manuscript Accepted: August 4, 2019
- Published: August 27, 2019

Abstract

A sensing device composed of an eccentric core photonic quasi-crystal fiber based on surface plasmon resonance is designed using indium tin oxide (ITO) as the sensitive materials. The ITO film is deposited on the outside surface of the fiber to excite plasmonic interactions and facilitate refractive index (RI) detection. This eccentric core structure makes the evanescent field coupled effectively with analyte to achieve higher sensitivity. The influence of RI and structural parameters of different analytes on sensor performance was calculated by the finite-element method. In the analyte RI range between 1.33 and 1.39, the wavelength sensitivity reaches 21,100 nm/RIU, and the average sensitivity of 8750 nm/RIU is achieved at a resolution of $4.739 \times 10^{- 6} RIU$ . The sensor has large potential in the detection of unknown RI analytes in the near-infrared region.

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Analyte RI	Peak Loss (dB/cm)	Res. Peak Wave. (nm)	Wave. Sens. (nm/RIU)	Wave. Res. (RIU)	FWHM (nm)	FOM ( ${RIU}^{- 1}$ )
1.33	17.901	1483	3300	$3.030 \times 10^{- 5}$	156.498	21.086
1.34	22.739	1516	4100	$2.439 \times 10^{- 5}$	152.668	26.855
1.35	29.995	1557	5200	$1.923 \times 10^{- 5}$	164.696	31.573
1.36	41.832	1609	7300	$1.370 \times 10^{- 5}$	167.715	43.526
1.37	64.108	1682	11500	$8.696 \times 10^{- 6}$	178.659	64.368
1.38	123.066	1797	21100	$4.739 \times 10^{- 6}$	197.538	106.81
1.39	256.592	2008	N/A	N/A	225.718	N/A

Refs.	Structure Characteristics	RI Range	Operation Wave. Range (nm)	Wave. Res. (RIU)	Max. Wave. Sens. (nm/RIU)
[37]	quasi-D-shaped optical fiber	1.33–1.38	1800–2140	$9.35 \times 10^{- 6}$	10,694
[28]	graphene over ITO-based D-shaped	1.33–1.35	1600–1800	$1.75 \times 10^{- 5}$	5700
[19]	dual core annular analyte channel	1.33–1.41	600–1070	$5.6 \times 10^{- 6}$	18,000
[32]	PCF-based SPR for DANCE	1.33–1.53	500–1100	$1.11 \times 10^{- 5}$	9000
[20]	ITO-coated PCF-based SPR sensor in near-IR	1.33–1.35	1900–2200	$1.35 \times 10^{- 5}$	17,000
[17]	An annular analyte channel PCF	1.38–1.42	700–1100	$4.73 \times 10^{- 6}$	4875
[12]	hollow core silver-coated PCF sensor	1.33–1.37	500–800	$2.38 \times 10^{- 5}$	4200
Our work	eccentric core ITO-coated PQF	1.33–1.39	1400–2200	$4.739 \times 10^{- 6}$	21,100

Analyte RI	Peak Loss (dB/cm)	Res. Peak Wave. (nm)	Wave. Sens. (nm/RIU)	Wave. Res. (RIU)	FWHM (nm)	FOM ( ${RIU}^{- 1}$ )
1.33	17.901	1483	3300	$3.030 \times 10^{- 5}$	156.498	21.086
1.34	22.739	1516	4100	$2.439 \times 10^{- 5}$	152.668	26.855
1.35	29.995	1557	5200	$1.923 \times 10^{- 5}$	164.696	31.573
1.36	41.832	1609	7300	$1.370 \times 10^{- 5}$	167.715	43.526
1.37	64.108	1682	11500	$8.696 \times 10^{- 6}$	178.659	64.368
1.38	123.066	1797	21100	$4.739 \times 10^{- 6}$	197.538	106.81
1.39	256.592	2008	N/A	N/A	225.718	N/A

Refs.	Structure Characteristics	RI Range	Operation Wave. Range (nm)	Wave. Res. (RIU)	Max. Wave. Sens. (nm/RIU)
[37]	quasi-D-shaped optical fiber	1.33–1.38	1800–2140	$9.35 \times 10^{- 6}$	10,694
[28]	graphene over ITO-based D-shaped	1.33–1.35	1600–1800	$1.75 \times 10^{- 5}$	5700
[19]	dual core annular analyte channel	1.33–1.41	600–1070	$5.6 \times 10^{- 6}$	18,000
[32]	PCF-based SPR for DANCE	1.33–1.53	500–1100	$1.11 \times 10^{- 5}$	9000
[20]	ITO-coated PCF-based SPR sensor in near-IR	1.33–1.35	1900–2200	$1.35 \times 10^{- 5}$	17,000
[17]	An annular analyte channel PCF	1.38–1.42	700–1100	$4.73 \times 10^{- 6}$	4875
[12]	hollow core silver-coated PCF sensor	1.33–1.37	500–800	$2.38 \times 10^{- 5}$	4200
Our work	eccentric core ITO-coated PQF	1.33–1.39	1400–2200	$4.739 \times 10^{- 6}$	21,100

Abstract

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Applied Optics