| 修饰不同金纳米颗粒的极大角倾斜光纤光栅折射率传感特性研究 |
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| 引用本文： | 赵明富,鲁姣,罗彬彬,石胜辉,王亚杰,吴德操,蒋上海,邹雪,王鑫,巫涛江.修饰不同金纳米颗粒的极大角倾斜光纤光栅折射率传感特性研究[J].半导体光电,2019,40(3):321-327. |
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| 作者姓名： | 赵明富 鲁姣 罗彬彬 石胜辉 王亚杰 吴德操 蒋上海 邹雪 王鑫 巫涛江 |
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| 作者单位： | 重庆理工大学光纤传感与光电检测重庆市重点实验室,重庆,400054;重庆能源职业学院,重庆,402247 |
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| 基金项目： | 国家自然科学基金项目(61875026,7)；重庆市科学技术委员会项目(cstc2018jcyjAX0122)；重庆理工大学研究生创新项目(ycx2018238). |
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| 摘 要： | 研究了分别使用大尺寸金纳米壳与星型金纳米颗粒修饰极大角倾斜光纤光栅(ExTFG)的局域表面等离子体共振(LSPR)传感器,实验对比了这两种ExTFG-LSPR传感器的折射率传感特性。实验结果表明:修饰星型金纳米颗粒的ExTFG传感器,其TM、TE模的基于波长变化的折射率灵敏度分别提升约15.52和12.8nm/RIU,但共振吸收效应不明显；而修饰大尺寸金纳米壳的ExTFG传感器,在大尺寸金纳米壳的LSPR作用下,其TM、TE模的基于波长变化的折射率灵敏度分别提升约31.1和26.99nm/RIU,同时,TM与TE模在C-L波段表现出强烈的共振吸收,基于归一化强度变化的折射率灵敏度分别约为185.18%/RIU和251.83%/RIU。
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| 关 键 词： | 极大角倾斜光纤光栅 金纳米壳 星型金纳米颗粒 局域表面等离子体共振 折射率 |
| 收稿时间： | 2018/12/4 0:00:00 |
Study on Refractive Index Sensing Properties of Excessively Tilted Fiber Grating Modified by Different Gold Nanoparticles |
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| ZHAO Mingfu,LU Jiao,LUO Binbin,SHI Shenghui,WANG Yajie,WU Decao,JIANG Shanghai,ZOU Xue,WANG Xin and WU Taojiang.Study on Refractive Index Sensing Properties of Excessively Tilted Fiber Grating Modified by Different Gold Nanoparticles[J].Semiconductor Optoelectronics,2019,40(3):321-327. |
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| Authors: | ZHAO Mingfu LU Jiao LUO Binbin SHI Shenghui WANG Yajie WU Decao JIANG Shanghai ZOU Xue WANG Xin and WU Taojiang |
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| Affiliation: | Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN,Chongqing Key Lab.Optical Fiber Sensor and Photoelectric, Chongqing University of Technol., Chongqing 400054, CHN and Energy Vocational College of Chongqing, Chongqing 402247, CHN |
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| Abstract: | Proposed is a kind of localized surface plasmon resonance (LSPR) sensor based on excessively tilted fiber grating (ExTFG) modified by large-scale gold nanoshells and star-shaped gold nanoparticles, respectively. The refractive index sensing characteristics of the two kinds of ExTFG-LSPR sensors were studied. Experimental results show that the wavelength-based RI sensitivity of the TM and TE mode of ExTFG sensor modified by star-shaped nanoparticles is improved by about 15.52 and 12.8nm/RIU, respectively, but the resonance absorption effect is not obvious; while for the Ex-TFG modified by large-scale gold nanoshells, the wavelength-based RI sensitivity of TM and TE modes is improved by about 31.1 and 26.99nm/RIU, respectively, due to the effect of LSPR of large-size gold nanoshells, and the intensity-based RI sensitivity of the TM and TE modes is about 185.18%/RIU and 251.83%/RIU, respectively. |
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| Keywords: | excessively tilted fiber grating gold nanoshells star-shaped nanoparticles localized surface Plasmon resonance refractive index |
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