External-resonance-enhanced transmission of light through sub-wavelength holes

被引：2
作者：
Kalkum, F. [1 ]
Peter, M. [1 ]
Barbastathis, G. [2 ]
Buse, K. [1 ]
机构：
[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[2] MIT, Cambridge, MA 02139 USA
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2010年 / 100卷 / 01期
关键词：
NEAR-FIELD OPTICS; ELECTRONICS;
D O I：
10.1007/s00340-010-3989-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using plasmonic resonances of metal films, enhanced transmission of light through sub-wavelength holes has been demonstrated. Here we show that external resonances can be employed as well: the transmission of 1.5-mu m wavelength light through 600-nm holes is enhanced by a factor of 20 using a Fabry-P,rot arrangement. The maximal enhancement factor is determined by the limited reflectivity of metal surfaces. It seems promising to combine both effects-plasmonic resonances plus tailored photonic-crystal structures on top of the metal film-in order to realize efficient sub-wavelength light sources as they are required for, e.g., advanced spectroscopy and lithography.
引用
收藏
页码：169 / 172
页数：4
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