Surface Plasmon Resonance-Based Optical Fiber Embedded in PDMS for Temperature Sensing
| Autor: | F. Martinez-Pinon, Ivan Hernandez-Romano, David Monzón-Hernández, Daniel A. May-Arrioja, Jesús Salvador Velázquez-González |
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| Rok vydání: | 2017 |
| Předmět: |
Optical fiber
Multi-mode optical fiber Materials science business.industry 02 engineering and technology 021001 nanoscience & nanotechnology Cladding (fiber optics) 01 natural sciences Graded-index fiber Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Fiber optic sensor 0103 physical sciences Optoelectronics Electrical and Electronic Engineering 0210 nano-technology Plastic optical fiber business Hard-clad silica optical fiber Photonic-crystal fiber |
| Zdroj: | IEEE Journal of Selected Topics in Quantum Electronics. 23:126-131 |
| ISSN: | 1558-4542 1077-260X |
| Popis: | A compact, simple-to-fabricate, low-cost, and highly sensitive optical fiber temperature sensor based on surface plasmon resonance (SPR) is reported. The sensor consists of a core mismatch fiber structure fabricated by splicing a small piece of single-mode fiber (SMF) between two multimode fibers (MMF). SPR is generated when evanescent field interacts with the gold layer deposited over the SMF cladding. Then, the sensor was embedded in polydimethylsiloxane (PDMS), which acts as a temperature to refractive index transducer. Due to PDMS high thermooptic coefficient, the SPR dip underwent a noticeable wavelength shift when a variation of temperature occurred. The device was tested in the 20–60 °C range showing a linear response and a sensitivity of 2.60 nm/°C. This sensor is appealing for temperature monitoring in microfluidic devices made of PDMS due to its high performance and simply fabrication process. |
| Databáze: | OpenAIRE |
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