Increased cut-off wavelength for a subwavelength hole in a real metal

被引：258

作者：

Gordon, R ^{[1
]}

Brolo, AG

机构：

[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada

[2] Univ Victoria, Dept Chem, Victoria, BC V8W 3V6, Canada

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 06期

关键词：

D O I：

10.1364/OPEX.13.001933

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A waveguide mode of a subwavelength rectangular hole in a real metal is analyzed. Due to coupling between surface plasmons on the long edges of the hole, the cut-off wavelength increases as the hole-width is reduced. The cut-off wavelength is found to be much larger than Rayleigh's criterion for perfect metals -2.3 times as large for a 15 nm wide hole. The analytical results are verified by finite-difference calculations. The finite difference calculations also show the influence of including material loss. (C) 2005 Optical Society of America.

引用

页码：1933 / 1938

页数：6

共 9 条

[1] Theory of diffraction by small holes [J].

Bethe, HA .

PHYSICAL REVIEW, 1944, 66 (7/8) :163-182

[2]

Booton RC, 1992, COMPUTATIONAL METHOD

[3] Optical transmission properties of a single subwavelength aperture in a real metal [J].

Degiron, A ;

Lezec, HJ ;

Yamamoto, N ;

Ebbesen, TW .

OPTICS COMMUNICATIONS, 2004, 239 (1-3) :61-66

[4] Extraordinary optical transmission through sub-wavelength hole arrays [J].

Ebbesen, TW ;

Lezec, HJ ;

Ghaemi, HF ;

Thio, T ;

Wolff, PA .

NATURE, 1998, 391 (6668) :667-669

[5] Strong polarization in the optical transmission through elliptical nanohole arrays [J].

Gordon, R ;

Brolo, AG ;

McKinnon, A ;

Rajora, A ;

Leathem, B ;

Kavanagh, KL .

PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4

[6] OPTICAL CONSTANTS OF NOBLE METALS [J].

JOHNSON, PB ;

CHRISTY, RW .

PHYSICAL REVIEW B, 1972, 6 (12) :4370-4379

[7] Strong influence of hole shape on extraordinary transmission through periodic arrays of subwavelength holes [J].

Koerkamp, KJK ;

Enoch, S ;

Segerink, FB ;

van Hulst, NF ;

Kuipers, L .

PHYSICAL REVIEW LETTERS, 2004, 92 (18) :183901-1

[8] Beaming light from a subwavelength aperture [J].

Lezec, HJ ;

Degiron, A ;

Devaux, E ;

Linke, RA ;

Martin-Moreno, L ;

Garcia-Vidal, FJ ;

Ebbesen, TW .

SCIENCE, 2002, 297 (5582) :820-822

[9]

RAYLEIGH, 1897, PHILOS MAG, V43, P125

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