| 李伟军,向东*,李小华,贾鹏.亚波长十字型MIM等离子波导滤波器[J].南华大学学报(自然科学版),2012,26(4):61~64.[LI Wei-jun1,XIANG Dong2*,LI Xiao-hua2,JIA Peng1.Subwavelength Cross-shaped MIM Plasmonic Waveguide Filters[J].Journal of University of South China(Science and Technology),2012,26(4):61~64.] |
| 亚波长十字型MIM等离子波导滤波器 |
| Subwavelength Cross-shaped MIM Plasmonic Waveguide Filters |
| 投稿时间：2012-09-21 |
| DOI： |
| 中文关键词: 亚波长 表面等离子激元 等离子波导 滤波器 |
| 英文关键词:subwavelength surface plasmon polaritons plasmonic waveguide filters |
| 基金项目:国家自然科学基金资助项目(11205083);湖南省自然科学基金资助项目(12JJ4009) |
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| 中文摘要: |
| 运用时域有限差分方法（FDTD）方法数值研究了一种亚波长十字型金属—绝缘体—金属（MIM）等离子波导结构的透射属性.结果表明该结构的透射极小值与十字型切口的长度密切相关,表现出良好的滤波性质.十字型切口被直MIM等离子波导分为上下两段,每一段独立构成一个驻波谐振腔.当各段长度独立满足驻波谐振条件时,该结构均会产生透射极小值. |
| 英文摘要: |
| A subwavelength cross-shaped metal-insulator-metal (MIM) plasmonic waveguide structure is numerically researched by using the finite-difference time-domain (FDTD) method.The results show that the minima of transmission of the structure have great relationships with the depth of the cross-shaped cut,and the filter capability of the structure is very good.The cross-shaped cut is separated into two parts by the straight MIM waveguide,and each part is looked as a self-existent resonant cavity.When the depths of the each part satisfy with the standing wave resonant condition,the minima of transmission of the cross-shaped MIM waveguide structure appear. |
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