Experimental study of probe-surface interaction in near-field optical microscopy

被引：20

作者：

Smolyaninov, II ^{[1
]}

Atia, WA ^{[1
]}

Pilevar, S ^{[1
]}

Davis, CC ^{[1
]}

机构：

[1] Univ Maryland, Dept Elect Engn, College Pk, MD 20742 USA

来源：

ULTRAMICROSCOPY | 1998年 / 71卷 / 1-4期

关键词：

near-field microscopy; shear-force distance control;

D O I：

10.1016/S0304-3991(97)00098-3

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

The physical mechanism of shear-force interaction between a fiber tip and a sample in near-field optical microscopy has been studied using tunneling current measurements between the tip and a sample. Optical and non-optical (tuning fork) shear-force distance controls have been used. In both cases a tunneling current between the tip and the sample has been detected at the very beginning of shear-force approach curve when the amplitude of tip vibration was just slightly smaller than its initial value. These results indicate that fiber-tips generally mechanically touch samples under shear-force distance feed-back control. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：177 / 182

页数：6

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