Journal
2019 19TH INTERNATIONAL CONFERENCE ON NUMERICAL SIMULATION OF OPTOELECTRONIC DEVICES (NUSOD 2019)
Volume -, Issue -, Pages 49-50Publisher
IEEE
DOI: 10.1109/nusod.2019.8806791
Keywords
Optical Fiber; Surface Plasmon; Sensor; Gold; COMSOL Multiphysics
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Faculty of Engineering and Computer Science of Concordia University
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Due to the importance of the public health toward the exposure to hazardous gases, real-time and sensitive gas sensors are among the priorities at present. Among different types of gas sensors, optical sensors with advantages like high sensitivity, low cost, miniaturization, and online monitoring have received great attention between the researchers. In this article, a fiber optic sensor based on surface plasmon resonance (SPR) of gold thin film is simulated by COMSOL Multiphysics. For this purpose, a single-mode optical fiber was considered to be uncladed on its middle part and coated with a thin film of gold and the sensitivity and resonance condition of the device was investigated as a function of thickness of the metal.
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