| 介质隔层金属光栅的局域磁共振场增强特性研究 |
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| 引用本文： | 赵华君.介质隔层金属光栅的局域磁共振场增强特性研究[J].光电子．激光,2011(6):845-848. |
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| 作者姓名： | 赵华君 |
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| 作者单位： | 重庆文理学院电子电气工程学院信息光电子技术与应用研究所重庆市微纳米材料工程与技术重点实验室； |
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| 基金项目： | 重庆市科委自然科学基金计划资助项目(CSTC,2010BB2352);重庆市教育委员会资助项目(KJ101203);重庆文理学院重点科研资助项目(Z2010DQ19) |
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| 摘 要： | 使用LC等效电路模型和严格耦合波(RCWA)法分析了磁共振局域场增强介质隔层金属光栅的电磁特性,研究了光栅周期、脊宽和介质隔层厚度等参数对磁共振波长的影响.研究表明,当入射光波长为2.38μm时(θ=20°,∧=800 nm,w=400 nm,h=20 nm,d=30nm),由于入射光与介质隔层金属光栅阻抗能够很好地耦...
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| 关 键 词： | 金属光栅 磁极子激元(MPs) 磁共振 LC电路模型 |
Metal grating with dielectric interlayer for enhancing the localized electromagnetic resonant field |
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| ZHAO Hua-jun.Metal grating with dielectric interlayer for enhancing the localized electromagnetic resonant field[J].Journal of Optoelectronics·laser,2011(6):845-848. |
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| Authors: | ZHAO Hua-jun |
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| Affiliation: | Chongqing Key Laboratory of Micro/Nano Materials Engineering and Technology,Institute of Information Optoelectronics Technology and Application,Department of Electronic and Electrical Engineering,Chongqing University of Arts and Sciences,Chongqing 402160,China |
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| Abstract: | Surface plasmon(SP) is an electromagnetic excitation that propagates in a wave along the planar interface between a metal and a dielectric medium.Similarly,the localized magnetic resonance can be observed through exciting the magnetic polaritons(MPs) on the metal surfaces,which can greatly enhance the localized electromagnetic field.Furthermore,the MP can also be excited in dielectric interlayer metal gratings(metallic grating coated on a dielectric spacer atop an opaque metal film).The characte... |
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| Keywords: | metal grating magnetic polaritons(MPs) magnetic resonance LC circuit model |
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