ELECTROMAGNETIC MECHANISM OF SURFACE ENHANCED 2ND HARMONIC-GENERATION BY SMOOTH SILVER ELECTRODES AND SCANNING TUNNELING MICROSCOPY

被引：17

作者：

AKTSIPETROV, OA ^{[1
]}

NIKULIN, AA ^{[1
]}

PANOV, VI ^{[1
]}

VASILEV, SI ^{[1
]}

PETUKHOV, AV ^{[1
]}

机构：

[1] ACAD SCI USSR, INST CRYSTALLOG, MOSCOW 117333, USSR

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 01期

关键词：

D O I：

10.1016/0038-1098(90)90296-N

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The surface of originally smooth silver electrodes is studied by means of reflected second harmonic (SH) generation and scanning tunneling microscopy after electrochemical etching of N monoatomic surface layers (N ∼ 0minus;10). At N ∼ 1 a generation of surface enhanced, diffuse, and depolarized SH is observed, and a distinct superatomic (of the scale ∼ 10 Å) granular roughness is detected on the electrode surface. The fluctuation electromagnetic mechanism is proposed to explain the surface enhancement of diffuse and depolarized SH component: the effect is interpreted as resulting from exciton of local plasmons in irregular surface structures formed in the process of etching. © 1990.

引用

页码：55 / 59

页数：5

共 20 条

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