| 平面波导激励的对称型表面等离子体共振结构的研究 |
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| 引用本文： | 刘瑾,陈抱雪,杨海马.平面波导激励的对称型表面等离子体共振结构的研究[J].光电子．激光,2011(12):1821-1825. |
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| 作者姓名： | 刘瑾 陈抱雪 杨海马 |
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| 作者单位： | 上海理工大学光电信息与计算机工程学院上海市现代光学系统重点实验室;上海工程技术大学电子电气工程学院;上海理工大学光电信息与计算机工程学院上海市现代光学系统重点实验室;上海理工大学光电信息与计算机工程学院上海市现代光学系统重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(60677032,61077042);上海市重点学科建设资助项目(S30502);上海市重点实验室建设资助项目(08DZ2272800);上海市科委资助项目(10160501700);上海工程技术大学校教学建设资助项目(p201102003,k201102003) |
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| 摘 要： | 研究了一种平面波导激励的对称型表面等离子体共振（SPR）结构，该结构以一定厚度的介质两侧覆盖金属层为核心。理论分析表明，该结构的TM0模式为表面波。研究了一定波长下不同介质时金属膜间介质厚度与等效折射率之间自勺．关系。采用离子交换技术制备了多模平面波导，对其等效折射率进行了测试，采用平面波导激励对称结构的等离子体表面波...
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| 关 键 词： | 平面波导 表面等离子体共振(SPR) 有效折射率 |
Study on the symmetric structure of surface plasmon resonance excited by planar waveguide |
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| LIU Jin,CHEN Bao-xue and YANG Hai-ma.Study on the symmetric structure of surface plasmon resonance excited by planar waveguide[J].Journal of Optoelectronics·laser,2011(12):1821-1825. |
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| Authors: | LIU Jin CHEN Bao-xue and YANG Hai-ma |
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| Affiliation: | Key Laboratory of Modern Optical System of Shanghai,School of Optical-Electrical Information and Computer Engineering,Shanghai University for Science and Technology,Shanghai 200093,China;College of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China);Key Laboratory of Modern Optical System of Shanghai,School of Optical-Electrical Information and Computer Engineering,Shanghai University for Science and Technology,Shanghai 200093,China;Key Laboratory of Modern Optical System of Shanghai,School of Optical-Electrical Information and Computer Engineering,Shanghai University for Science and Technology,Shanghai 200093,China |
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| Abstract: | A symmetric structure of surface plasmon resonance excited by planar waveguide is studied.The structure is the metal layer covering both sides of the media with a certain thickness.The theoretical analysis shows that the TM0 mode of that structure is surface wave and the relationship between the equivalent refractive index and the interval of metal films is studied under a certain wavelength.Ionexchange technology is used to prepare the multi-mode planar waveguide.The planar waveguide is used to excite the plasmon surface wave of the symmetric structure and its equivalent refractive index is tested.Plasma surface wave is excited when the concentration of glycerin solution is 0-70% and the thickness is 300 nm and 500 nm respectively.Results show that the refractive index matching of this structure can be adjusted by changing the thickness of media.The problem that the equivalent refractive index of ion-exchange planar waveguide is large and it is difficult to excite the plasmon surface wave between the metal and the media to achieve sensing is solved. |
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| Keywords: | planar waveguide surface plasmon resonance(SPR) equivalent refractive index |
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