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金属光子晶体平板的超强透射及其表面等离子体共振
  • ISSN号：1000-3290
  • 期刊名称：《物理学报》
  • 时间：0
  • 分类：O734[理学—晶体学] TP212.3[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构：[1]湖南科技大学物理学院,湘潭411201, [2]中国科学院上海技术物理研究所红外物理国家重点实验室,上海200083, [3]中南大学物理科学与技术学院,长沙410082, [4]湖南大学物理与微电子科学学院,长沙410082
  • 相关基金：国家自然科学基金重点专项（纳米科技专项）（批准号：90606001）,湖南省自然科学基金（批准号：07JJ3114）和高等学校博士学科点专项基金（批准号：20050532013）资助的课题.
作者： 周仁龙[1,2], 陈效双[2], 曾勇[2], 张建标[2], 陈洪波[2], 王少伟[2], 陆卫[2], 李宏建[3], 夏辉[3], 王玲玲[4]
关键词： 光子晶体, 金属平板, 超强透射, 表面等离子体, photonic crystal, gold-film, enhanced transmission, surface plasmon
中文摘要：

用全矢量的三维有限差分时域（finite-difference time-domain,简称FDTD）方法,研究了正方形单元结构金属光子晶体平板的增强传输效应以及局域性表面等离子体共振现象.这种增强效应来自于两个不同的等离子体共振机制：由长方形空气孔形成的局域波导共振以及由周期性结构引起的光子晶体共振效应.对于由长方形空气孔形成的局域波导共振模式,其等离子体波全部局域在整个长方形空气孔区域中.而由周期性引起的共振模式,其频率随着金属平板表面周期性的变化而变化,相应的等离子体波分布在长方形空气孔区域的两端.产生的表面等离子体都局域在长方形空气孔区域中,电场强度得到了显著的增强.

英文摘要：

In this paper,we show that the enhanced transmission and the surface plasmon distribution through a thin gold film with a periodic array of subwavelength holes with the finite-difference time-domain （FDTD） method. The transmission spectra exhibit two different surface plasmon resonance features： the localized waveguide resonance and the well-recognized photonic crystal resonance. For the localized waveguide resonance,the tangential electric field component Ey is seen to be concentrated entirely in the rectangular air hole region. And for the photonic crystal resonance,the tangential electric field components Ey is nonzero only on the two sides of the rectangular hole region. With the aid of the SP,light can form a strong focal spot at the bottom of the metal.

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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876