Optical transmission through double-layer metallic subwavelength slit arrays

被引：86

作者：

Chan, HB ^{[1
]}

Marcet, Z

Woo, K

Tanner, DB

Carr, DW

Bower, JE

Cirelli, RA

Ferry, E

Klemens, F

Miner, J

Pai, CS

Taylor, JA

机构：

[1] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[2] Sandia Natl Labs, Albuquerque, NM 87185 USA

[3] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

OPTICS LETTERS | 2006年 / 31卷 / 04期

关键词：

D O I：

10.1364/OL.31.000516

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present measurements of transmission of infrared radiation through double-layer metallic grating structures. Each metal layer contains an array of subwavelength slits and supports transmission resonance in the absence of the other layer. The two metal layers are fabricated in close proximity to allow coupling of the evanescent field on individual layers. The transmission of the double layer is found to be surprisingly large at particular wavelengths, even when no direct line of sight exists through the structure as a result of the lateral shifts between the two layers. We perform numerical simulations using rigorous coupled wave analysis to explain the strong dependence of the peak transmission on the lateral shift between the metal layers. (c) 2006 Optical Society of America.

引用

页码：516 / 518

页数：3

共 21 条

[1] Light transmission through metallic channels much smaller than the wavelength [J].