Separate-type scanner and wideband high-voltage amplifier for atomic-resolution and high-speed atomic force microscopy

被引：18

作者：

Miyata, Kazuki ^{[1
]}

Usho, Satoshi ^{[1
]}

Yamada, Satoshi ^{[1
]}

Furuya, Shoji ^{[1
]}

Yoshida, Kiyonori ^{[1
]}

Asakawa, Hitoshi ^{[2
]}

Fukuma, Takeshi ^{[1
,2
]}

机构：

[1] Kanazawa Univ, Div Elect Engn & Comp Sci, Kanazawa, Ishikawa 9201192, Japan

[2] Kanazawa Univ, Bio AFM Frontier Res Ctr, Kanazawa, Ishikawa 9201192, Japan

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 04期

基金：

日本科学技术振兴机构;

关键词：

DEFLECTION SENSOR; CANTILEVERS; DESIGN; PROBE;

D O I：

10.1063/1.4802262

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have developed a liquid-environment atomic force microscope with a wideband and low-noise scanning system for atomic-scale imaging of dynamic processes at solid/liquid interfaces. The developed scanning system consists of a separate-type scanner and a wideband high-voltage amplifier (HVA). By separating an XY-sample scanner from a Z-tip scanner, we have enabled to use a relatively large sample without compromising the high resonance frequency. We compared various cantilever- and sample-holding mechanisms by experiments and finite element analyses for optimizing the balance between the usability and frequency response characteristics. We specifically designed the HVA to drive the developed scanners, which enabled to achieve the positioning accuracy of 5.7 and 0.53 pm in the XY and Z axes, respectively. Such an excellent noise performance allowed us to perform atomic-resolution imaging of mica and calcite in liquid. Furthermore, we demonstrate in situ and atomic-resolution imaging of the calcite crystal growth process in water. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4802262]

引用

页数：8

共 21 条

[1] High-speed atomic force microscopy for studying the dynamic behavior of protein molecules at work [J].