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Your search keyword '"Wang, Botao"' showing total 15 results
Start Over Author "Wang, Botao" Publisher institute of electrical and electronics engineers (ieee)
15 results on '"Wang, Botao"'

5. An Optical Fiber Immunosensor With a Low Detection Limit Based on Plasmon Coupling Enhancement

Author

Ming Ding, Yanxiong Niu, Zheng Shaowei, Wang Botao, and Yiheng Yin

Subjects
Detection limit, Optical fiber, Materials science, business.industry, Graphene, 02 engineering and technology, Atomic and Molecular Physics, and Optics, law.invention, 020210 optoelectronics & photonics, law, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Nanorod, business, Biosensor, Refractive index, Plasmon, Photonic-crystal fiber
Abstract

An optical fiber immunosensor with a low detection limit based on plasmon coupling enhancement is proposed for detecting human immunoglobulin G (IgG). Graphene oxide (GO)-gold nanorod composites are synthesized and modified onto a photonic crystal fiber (PCF) surface coated with a Au film. GO, as a biosensitive layer, is used to decorate the gold nanorods and concentrate target molecules. The experimental result indicates that the refractive index sensitivity is drastically enhanced to 22248 nm/RIU because of plasmon coupling. Correspondingly, the human IgG detection limit decreases to 6 ng/mL. Moreover, the PCF is insensitive to temperature fluctuation, which can further reduce the measurement error.

Published
2020

6. A High Temperature Sensor Based on Sapphire Fiber Fabry-Perot Interferometer

Author

Ming Ding, Wang Botao, Yanxiong Niu, Yiheng Yin, and Zheng Shaowei

Subjects
Cooley–Tukey FFT algorithm, Range (particle radiation), Optical fiber, Materials science, business.industry, Temperature measurement, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Interference (communication), law, visual_art, visual_art.visual_art_medium, Optoelectronics, Ceramic, Electrical and Electronic Engineering, business, Sapphire fiber, Fabry–Pérot interferometer
Abstract

A sapphire fiber high temperature sensor based on Fabry-Perot interference was studied in the paper. A sapphire wafer served as the Fabry-Perot cavity was fixed to the end face of the sapphire fiber. The sensor was encapsulated in an alumina ceramic tube-ceramic sleeve structure to improve structural stability. Experiment results showed the sensor had a wide temperature measurement range of 25 °C–1550 °C. The temperature sensitivity reached 32.5 pm/°C at 1550 °C. Furthermore, the temperature was demodulated from the interference spectrum through fast Fourier transform algorithm. It was concluded that the sapphire fiber sensor with advantages of small size, good stability and a wide range of temperature measurement is very promising for measuring high temperature.

Published
2020

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