Collection of transverse and longitudinal fields by means of apertureless nanoprobes with different metal coating characteristics

被引：19

作者：

Descrovi, E

Vaccaro, L

Nakagawa, W

Aeschimann, L

Staufer, U

Herzig, HP

机构：

[1] Univ Neuchatel, Inst Microtechnol, CH-2000 Neuchatel, Switzerland

[2] Ctr Suisse Elect & Microtech SA, CH-2007 Neuchatel, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 22期

关键词：

D O I：

10.1063/1.1827925

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The coupling and transmission of transverse and longitudinal fields into apertureless microfabricated near-field optical probes is investigated. Two kinds of probes with different metal coating roughness are considered. Transverse and longitudinal field distributions are obtained by focusing azimuthally and radially polarized beams produced by means of a liquid crystal plate. The focal plane is scanned using microfabricated probes in a collection mode configuration. It is found that the roughness of the metal coating plays an important role in the coupling strength of transverse fields into the probes: the relative coupling efficiency for transverse fields diminishes with a rough metal coating, while that of longitudinal fields does not. (C) 2004 American Institute of Physics.

引用

页码：5340 / 5342

页数：3

共 16 条

[1] Characterization and fabrication of fully metal-coated scanning near-field optical microscopy SiO2 tips [J].