Design of Surface Plasmon Resonance-Based D-Type Double Open-Loop Channels PCF for Temperature Sensing

Shuangyan Gao; Kaihua Wei; Hua Yang; Yongjian Tang; Zao Yi; Chaojun Tang; Bin Tang; Yougen Yi; Pinghui Wu

doi:10.3390/s23177569

Design of Surface Plasmon Resonance-Based D-Type Double Open-Loop Channels PCF for Temperature Sensing

Sensors (Basel). 2023 Aug 31;23(17):7569. doi: 10.3390/s23177569.

Authors

Shuangyan Gao¹, Kaihua Wei², Hua Yang³, Yongjian Tang¹, Zao Yi^{1

4}, Chaojun Tang⁵, Bin Tang⁶, Yougen Yi⁷, Pinghui Wu⁸

Affiliations

¹ Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China.
² School of Automation, Hangzhou Dianzi University, Hangzhou 310018, China.
³ School of Science, Lanzhou University of Technology, Lanzhou 730050, China.
⁴ School of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China.
⁵ College of Science, Zhejiang University of Technology, Hangzhou 310023, China.
⁶ School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213164, China.
⁷ College of Physics and Electronics, Central South University, Changsha 410083, China.
⁸ Key Laboratory of Information Functional Material for Fujian Higher Education, Quanzhou Normal University, Quanzhou 362000, China.

Abstract

Here, we document a D-type double open-loop channel floor plasmon resonance (SPR) photonic crystal fiber (PCF) for temperature sensing. The grooves are designed on the polished surfaces of the pinnacle and backside of the PCF and covered with a gold (Au) film, and stomata are distributed around the PCF core in a progressive, periodic arrangement. Two air holes between the Au membrane and the PCF core are designed to shape a leakage window, which no longer solely averts the outward diffusion of Y-polarized (Y-POL) core mode energy, but also sets off its coupling with the Au movie from the leakage window. This SPR-PCF sensor uses the temperature-sensitive property of Polydimethylsiloxane (PDMS) to reap the motive of temperature sensing. Our lookup effects point out that these SPR-PCF sensors have a temperature sensitivity of up to 3757 pm/°C when the temperature varies from 5 °C to 45 °C. In addition, the maximum refractive index sensitivity (RIS) of the SPR-PCF sensor is as excessive as 4847 nm/RIU. These proposed SPR-PCF temperature sensors have an easy nanostructure and proper sensing performance, which now not solely improve the overall sensing performance of small-diameter fiber optic temperature sensors, but also have vast application prospects in geo-logical exploration, biological monitoring, and meteorological prediction due to their remarkable RIS and exclusive nanostructure.

Keywords: Core-Metal-Analytes; double open-loop channels; surface plasmon resonance; temperature sensing.

Grants and funding

The authors are grateful to be supported by the National Natural Science Foundation of China (No. 51606158, 11604311, 61705204, 21506257); funded by the Open Fund of Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering at Wuhan University of Science and Technology (MTMEOF2021B02); funded by the Open Fund of The Key Laboratory for Metallurgical Equipment and Control Technology of Ministry of Education in Wuhan University of Science and Technology (No. MECOF2022B01); funded by the Opening Project of Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences; funded by the Natural Science Foundation of Fujian Province (2022J011102, 2022H0048); funded by the Open Competition Mechanism Project of Science and Technology Department of Quanzhou City (2022GZ4); supported by the Southwest University of Science and Technology Precision Grant Project (number: JZ23-071); and supported by the Sichuan College Students Innovation and Entrepreneurship Training Program.