Surface modes on nanostructured metallic surfaces

被引：18

作者：

Collin, S. ^{[1
]}

Sauvan, C. ^{[1
,2
]}

Billaudeau, C. ^{[1
]}

Pardo, F. ^{[1
]}

Rodier, J. C. ^{[2
]}

Pelouard, J. L. ^{[1
]}

Lalanne, P. ^{[2
]}

机构：

[1] CNRS, LPN, F-91460 Marcoussis, France

[2] Univ Paris Sud, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 16期

关键词：

Brillouin zones; dispersion relations; energy gap; interface states; metal-insulator boundaries; nanostructured materials; plasmonics; surface impedance; surface plasmons; surface states; EXTRAORDINARY OPTICAL-TRANSMISSION; SUBWAVELENGTH HOLE ARRAYS; PLASMONS; METAMATERIALS; APERTURES;

D O I：

10.1103/PhysRevB.79.165405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dispersion properties of surface modes supported by metal/dielectric interfaces perforated by two-dimensional arrays of subwavelength apertures are studied. An analytical surface-impedance model is derived. It provides closed-form expressions for the dispersion relation of surface modes and allows to take into account the aperture geometry and the dispersive and dissipative properties of the metal. The model predicts the dispersion relation and the mode lifetime, in quantitative agreement with fully vectorial computational results and with experimental data obtained at optical frequencies. The analysis reveals a double plasmonic band gap in the center of the Brillouin zone for a square array. It additionally clarifies the effects of various different geometrical and material parameters on the surface properties.

引用

页数：7

共 26 条

[1] Physical origin of photonic energy gaps in the propagation of surface plasmons on gratings [J].