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Design and optimization of microstructure optical fiber sensor based on bimetal plasmon mode interaction 被引量:1
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作者 Meng Wu XinYu Liu +3 位作者 gui-yao zhou Chang-Ming Xia Bo-Yao Li Zhi-Yun Hou 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第12期153-159,共7页
A surface plasmon resonance(SPR) sensor with two orthogonal open loops based on microstructured optical fibers(MOFs) is introduced. The interaction between core mode and surface plasmon polariton(SPP) mode produced by... A surface plasmon resonance(SPR) sensor with two orthogonal open loops based on microstructured optical fibers(MOFs) is introduced. The interaction between core mode and surface plasmon polariton(SPP) mode produced by two different metal films is studied. Full vector finite element method is used to analyze the coupling and sensing characteristics.The results show that there are three loss peaks near the Au/Ag film, and multi-peak calibration is achieved. Because of the positive and negative sensitivity of the amplitude, the sensor has strong anti-interference capability when the external environment changes. The sensor can detect the refractive index between 1.37 and 1.40, and the working wavelength is between 1600 nm and 2400 nm. Because the sensor has some excellent characteristics, it can be used in biochemical sensing, environmental detection, and other related fields. 展开更多
关键词 surface plasma BIOSENSOR multi-component detection photonic crystal fiber
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Single-polarization single-mode hollow-core negative curvature fiber with nested U-type cladding elements
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作者 Qi-Wei Wang Shi Qiu +9 位作者 Jin-Hui Yuan gui-yao zhou Chang-Ming Xia Yu-Wei Qu Xian zhou Bin-Bin Yan Qiang Wu Kui-Ru Wang Xin-Zhu Sang Chong-Xiu Yu 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第6期422-428,共7页
Hollow-core negative curvature fibers(HC-NCFs)have become one of the research hotspots in the field of optical fiber because of their potential applications in the data and energy transmissions.In this work,a new kind... Hollow-core negative curvature fibers(HC-NCFs)have become one of the research hotspots in the field of optical fiber because of their potential applications in the data and energy transmissions.In this work,a new kind of single-polarization single-mode HC-NCF with nested U-type cladding elements is proposed.To achieve the single-polarization single-mode transmission,we use two different silica tubes in thickness,which satisfy the resonance and anti-resonance conditions on the U-type cladding elements and the cladding tubes,respectively.Besides,the elliptical elements are introduced to achieve good single-mode performance.By studying the influences of the structure parameters on the propagation characteristics,the optimized structure parameters are obtained.The simulation results show that when the wavelength is fixed at 1550 nm,the single-polarization single-mode transmission is achieved,with the polarization extinction ratio of 25749 and minimum high-order mode extinction ratio of 174.Furthermore,the confinement loss is only 0.0015 dB/m. 展开更多
关键词 hollow-core negative curvature fiber single-polarization SINGLE-MODE finite element method
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