Miniaturized Long-Period Fiber Grating Assisted Surface Plasmon Resonance Sensor

This paper presents the design and fabrication of a fiber-optic refractive index (RI) sensor. The novel concept employs a long-period fiber grating (LPG) to achieve surface plasmon resonance (SPR) of a single cladding mode at the gold-coated tip of a single-mode fiber. The sensor combines a high lev...

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Bibliographic Details
Published in:Journal of lightwave technology 2012-04, Vol.30 (8), p.1003-1008
Main Authors: Schuster, T., Herschel, R., Neumann, N., Schaffer, C. G.
Format: Article
Language:English
Subjects:
Applied sciences
Biosensing
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber-optic instruments
General equipment and techniques
Gold
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Integrated optics. Optical fibers and wave guides
long-period fiber grating (LPG)
Optical and optoelectronic circuits
Optical fiber polarization
optical fiber sensor
Optical fiber sensors
Optical instruments, equipment and techniques
Optical surface waves
Optoelectronic devices
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
surface plasmon resonance (SPR)
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Summary:This paper presents the design and fabrication of a fiber-optic refractive index (RI) sensor. The novel concept employs a long-period fiber grating (LPG) to achieve surface plasmon resonance (SPR) of a single cladding mode at the gold-coated tip of a single-mode fiber. The sensor combines a high level of sensitivity, a miniaturized sensing area and simple intensity-based interrogation, and is intended for biosensing using portable point-of-care devices or highly integrated lab-on-chip systems.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2011.2166756