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Review of Scientific Instruments / Volume 83 / Issue 2 / ARTICLES / Microscopy and Imaging

Rev. Sci. Instrum. 83, 023705 (2012); http://dx.doi.org/10.1063/1.3683235 (4 pages)

The long range voice coil atomic force microscope

H. Barnard, C. Randall, D. Bridges, and P. K. Hansma

Department of Physics, University of California, Santa Barbara, California 93106, USA

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(Received 16 December 2011; accepted 21 January 2012; published online 9 February 2012)

Most current atomic force microscopes (AFMs) use piezoelectric ceramics for scan actuation. Piezoelectric ceramics provide precision motion with fast response to applied voltage potential. A drawback to piezoelectric ceramics is their inherently limited ranges. For many samples this is a nonissue, as imaging the nanoscale details is the goal. However, a key advantage of AFM over other microscopy techniques is its ability to image biological samples in aqueous buffer. Many biological specimens have topography for which the range of piezoactuated stages is limiting, a notable example of which is bone. In this article, we present the use of voice coils in scan actuation for an actuation range in the Z-axis an order of magnitude larger than any AFM commercially available today. The increased scan size will allow for imaging an important new variety of samples, including bone fractures.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. INSTRUMENT DESIGN
    1. Axes
    2. Electronics
    3. Cantilevers and imaging settings
    4. Bone sample preparation
  3. IMAGES
  4. SUMMARY

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KEYWORDS, PACS, and IPC

Keywords

atomic force microscopy, piezoceramics

PACS

  • 68.37.Ps

    Atomic force microscopy (AFM)

  • 81.05.Je

    Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides)

International Patent Classification (IPC)

  • H01L41/18

    For piezo-electric or electrostrictive elements

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3683235

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    C. Randall, P. Mathews, E. Yurtsev, N. Sahar, D. Kohn, and P. K. Hansma, Rev. Sci. Instrum. 80, 065108 (2009)RSINAK000080000006065108000001.


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