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A sub-sampled approach to extremely low-dose STEM

Publication ,  Journal Article
Stevens, A; Luzi, L; Yang, H; Kovarik, L; Mehdi, BL; Liyu, A; Gehm, ME; Browning, ND
Published in: Applied Physics Letters
January 22, 2018

The inpainting of deliberately and randomly sub-sampled images offers a potential means to image specimens at a high resolution and under extremely low-dose conditions (≤1 e-/Å2) using a scanning transmission electron microscope. We show that deliberate sub-sampling acquires images at least an order of magnitude faster than conventional low-dose methods for an equivalent electron dose. More importantly, when adaptive sub-sampling is implemented to acquire the images, there is a significant increase in the resolution and sensitivity which accompanies the increase in imaging speed. We demonstrate the potential of this method for beam sensitive materials and in-situ observations by experimentally imaging the node distribution in a metal-organic framework.

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Published In

Applied Physics Letters

DOI

ISSN

0003-6951

Publication Date

January 22, 2018

Volume

112

Issue

4

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 40 Engineering
  • 10 Technology
  • 09 Engineering
  • 02 Physical Sciences
 

Citation

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Stevens, A., Luzi, L., Yang, H., Kovarik, L., Mehdi, B. L., Liyu, A., … Browning, N. D. (2018). A sub-sampled approach to extremely low-dose STEM. Applied Physics Letters, 112(4). https://doi.org/10.1063/1.5016192
Stevens, A., L. Luzi, H. Yang, L. Kovarik, B. L. Mehdi, A. Liyu, M. E. Gehm, and N. D. Browning. “A sub-sampled approach to extremely low-dose STEM.” Applied Physics Letters 112, no. 4 (January 22, 2018). https://doi.org/10.1063/1.5016192.
Stevens A, Luzi L, Yang H, Kovarik L, Mehdi BL, Liyu A, et al. A sub-sampled approach to extremely low-dose STEM. Applied Physics Letters. 2018 Jan 22;112(4).
Stevens, A., et al. “A sub-sampled approach to extremely low-dose STEM.” Applied Physics Letters, vol. 112, no. 4, Jan. 2018. Scopus, doi:10.1063/1.5016192.
Stevens A, Luzi L, Yang H, Kovarik L, Mehdi BL, Liyu A, Gehm ME, Browning ND. A sub-sampled approach to extremely low-dose STEM. Applied Physics Letters. 2018 Jan 22;112(4).

Published In

Applied Physics Letters

DOI

ISSN

0003-6951

Publication Date

January 22, 2018

Volume

112

Issue

4

Related Subject Headings

  • Applied Physics
  • 51 Physical sciences
  • 40 Engineering
  • 10 Technology
  • 09 Engineering
  • 02 Physical Sciences