Why metallic surfaces with grooves a few nanometers deep and wide may strongly absorb visible light

被引：166

作者：

Le Perchec, J. ^{[1
]}

Quemerais, P. ^{[1
]}

Barbara, A. ^{[1
]}

Lopez-Rios, T. ^{[1
]}

机构：

[1] Univ Grenoble 1, CNRS, Inst Neel, F-38042 Grenoble 9, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.100.066408

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is theoretically shown that nanometric silver lamellar gratings present very strong visible light absorption inside the grooves, leading to electric field enhancement of several orders of magnitude. It is due to the excitation of quasistatic surface plasmon polaritons with particular small penetration depth in the metal. This may explain the abnormal optical absorption observed a long time ago on almost flat Ag films. Surface enhanced Raman scattering in rough metallic films could also be due to the excitation of such quasistatic plasmon polaritons in grain boundaries or notches of the films.

引用

页数：4

共 30 条

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

Astilean, S ;

Lalanne, P ;

Palamaru, M .

OPTICS COMMUNICATIONS, 2000, 175 (4-6) :265-273

[2] Three-dimensional structures for enhanced transmission through a metallic film: Annular aperture arrays [J].

Baida, FI ;

Van Labeke, D .

PHYSICAL REVIEW B, 2003, 67 (15)

[3] THE FINITELY CONDUCTING LAMELLAR DIFFRACTION GRATING [J].

BOTTEN, LC ;

CRAIG, MS ;

MCPHEDRAN, RC ;

ADAMS, JL ;

ANDREWARTHA, JR .

OPTICA ACTA, 1981, 28 (08) :1087-1102

[4] HIGHLY CONDUCTING LAMELLAR DIFFRACTION GRATINGS [J].

BOTTEN, LC ;

CRAIG, MS ;

MCPHEDRAN, RC .

OPTICA ACTA, 1981, 28 (08) :1103-1106

[5] Waveguiding in nanoscale metallic apertures [J].

Collin, Stephane ;

Pardo, Fabrice ;

Pelouard, Jean-Luc .

OPTICS EXPRESS, 2007, 15 (07) :4310-4320

[6] FRACTAL CHARACTER OF COLD-DEPOSITED SILVER FILMS DETERMINED BY LOW-TEMPERATURE SCANNING-TUNNELING-MICROSCOPY [J].

DOUKETIS, C ;

WANG, ZH ;

HASLETT, TL ;

MOSKOVITS, M .

PHYSICAL REVIEW B, 1995, 51 (16) :11022-11031

[7] SURFACE PLASMONS IN THIN FILMS [J].

ECONOMOU, EN .

PHYSICAL REVIEW, 1969, 182 (02) :539-&

[8] A NEW THEORY OF WOODS ANOMALIES ON OPTICAL GRATINGS [J].

HESSEL, A ;

OLINER, AA .

APPLIED OPTICS, 1965, 4 (10) :1275-&

[9] Surface plasmon polaritons on narrow-ridged short-pitch metal gratings [J].

Hooper, IR ;

Sambles, JR .

PHYSICAL REVIEW B, 2002, 66 (20) :1-7

[10] OPTICAL-ABSORPTION IN PARTIALLY DISORDERED SILVER FILMS [J].

HUNDERI, O ;

MYERS, HP .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1973, 3 (04) :683-690

← 1 2 3 →