Bio-inspired scanning for video-imaging using an atomic force microscope

Chengeng Qu, Bo Song, Ning Xi, King Wai Chiu Lai, Ruiguo Yang, Hongzhi Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Atomic Force Microscopy (AFM) is a powerful tool that can perform nano-scale imaging. Normally AFM tip is controlled to scan on sample surface line by line to get the topographic image and this process takes several minutes. Higher sample rate is demanded so that when doing continuous imaging, the time interval between each image can be significantly shorted thus video-imaging can be achieved. In this paper, a compressive sensing based AFM video-imaging system is built, and random walk based scanning path is proposed. Compressive sensing requires random sampling. Bio-inspired random walk based scan path is able to provide a random tip moving path, which enables compressive sensing to be implemented into AFM scanning system. Experiments based on this system are set up in order to test the performance. It first raster scan the entire area and then generate a biased random tip moving path focusing on some specific areas. Compressive scan is then used to continuously scan the sample surface. Finally, video-imaging is achieved and dynamic changes in nano-scale are observed.

Original languageEnglish (US)
Title of host publication2012 12th IEEE International Conference on Nanotechnology, NANO 2012
DOIs
StatePublished - Nov 22 2012
Event2012 12th IEEE International Conference on Nanotechnology, NANO 2012 - Birmingham, United Kingdom
Duration: Aug 20 2012Aug 23 2012

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Other

Other2012 12th IEEE International Conference on Nanotechnology, NANO 2012
CountryUnited Kingdom
CityBirmingham
Period8/20/128/23/12

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ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Qu, C., Song, B., Xi, N., Lai, K. W. C., Yang, R., & Chen, H. (2012). Bio-inspired scanning for video-imaging using an atomic force microscope. In 2012 12th IEEE International Conference on Nanotechnology, NANO 2012 [6322148] (Proceedings of the IEEE Conference on Nanotechnology). https://doi.org/10.1109/NANO.2012.6322148