Piezoelectrical shear-force distance control in near-field optical microscopy for biological applications

被引：13

作者：

Hollricher, O ^{[1
]}

Brunner, R ^{[1
]}

Marti, O ^{[1
]}

机构：

[1] Univ Ulm, Expt Phys Abt, D-89069 Ulm, Germany

来源：

ULTRAMICROSCOPY | 1998年 / 71卷 / 1-4期

关键词：

D O I：

10.1016/S0304-3991(97)00074-0

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

We present a piezoelectrical shear-force distance control setup for scanning near-field optical microscopy. The setup is compact and tip exchange is easy. The topographical sensitivity is comparable to optical feedback systems. With an acceptable vibration amplitude of 5-10 nm we obtained a topographical resolution of 5 pm/root Hz. Because there is no laser necessary for tip position feedback, there is no extraneous light to interfere with spectroscopic and other low-light level experiments. Our technique permits measurements of soft biological samples in aqueous solution, which opens up many possible applications of near-field optical microscopy in biology and medicine. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：143 / 147

页数：5

共 12 条

[1] An easy-to-use non-optical shear-force distance control for near-field optical microscopes [J].