[1]曹玉蓉,叶永红.孔阵形状对周期孔阵金属薄膜透过率的影响[J].南京师大学报(自然科学版),2009,32(03):37-41.
　Cao Yurong,Ye Yonghong.Influence of Aperture Shape on Extraordinary Transmission Through Periodically Perforated Metal Films[J].Journal of Nanjing Normal University(Natural Science Edition),2009,32(03):37-41.
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孔阵形状对周期孔阵金属薄膜透过率的影响()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第32卷
期数:
2009年03期
页码:
37-41
栏目:
物理学
出版日期:
2009-09-30

文章信息/Info

Title:
Influence of Aperture Shape on Extraordinary Transmission Through Periodically Perforated Metal Films
作者:
曹玉蓉;叶永红;
南京师范大学物理科学与技术学院, 江苏南京210097
Author(s):
Cao Yurong; Ye Yonghong
School of Physical Science and Technology,Nanjing Normal University,Nanjing 210097,China
关键词:
周期孔阵金属薄膜;  透过率增强;  数值模拟;  孔阵形状
Keywords:
period ica lly perforated m eta l film;  enhanced transm ission;  sim ulation;  hole shape
分类号:
O484.41
摘要:
采用高频结构仿真软件对中红外波段周期结构金属薄膜的光透射增强现象进行了数值模拟.通过对圆形、椭圆、正方形以及长方形4种不同孔阵金属薄膜的仿真得出,金属微孔的几何形状对透过率增强有着重要的影响.当椭圆或长方形金属孔阵长短径比例增加时,透射峰随着比例的增大红移;比较4种金属薄膜的透射峰移动情况发现,长方形和椭圆的形状效应较为明显.上述结果显示局域模式在透射增强现象中起了重要的作用.此外,我们还对长方形和椭圆孔阵列在不同偏振光入射下的光透射性质进行了模拟.
Abstract:
TheH igh Frequency Structure S imu la tor is used to sim ulate the enhanced transm ission through period ica lly perforated m eta l film s in them iddle- infrared reg ion. W e studied the circ le, e llipse, square and rectangular ho le array s and dem onstrated ( w ith d iffe rent shapes) that the transm ission properties are strong ly influenced by the ho le shape. For the e llipse and rectangu la r ho le arrays, the position o f the transm ission peak sh ifts tow ard longerw aveleng th as the aspect ra tio increases. By comparing the sh ift o f the transm ission peak among the abov e fou r arrays, w e found tha t shape resonace of rec tangu lar and e llipse ho les is larger than the others. The simu lated results indicate that localizedm odes p lay an im po rtant role in the enhanced transm ission. The optica l transm ission prope rties of the e llipse and rectangu lar ho le array s under d ifferent po larization o f the incident ligh t are also simu la ted.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 60778041)、江苏省普通高校自然科学研究计划( 07KJA51001)资助项目.
通讯联系人: 叶永红, 教授, 研究方向: 光电功能材料. E-m ail:yen jnu@ yahoo. ca
更新日期/Last Update: 2013-04-23