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Title: A sub-sampled approach to extremely low-dose STEM

Abstract

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 -2) 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. Lastly, 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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [4];  [6];  [5]
  1. OptimalSensing, Southlake, TX (United States); Duke Univ., Durham, NC (United States)
  2. Rice Univ., Houston, TX (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Univ. of Liverpool (United Kingdom)
  6. Duke Univ., Durham, NC (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1433504
Report Number(s):
PNNL-SA-126577
Journal ID: ISSN 0003-6951
Grant/Contract Number:
AC05-76RL01830
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 112; Journal Issue: 4; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Stevens, A., Luzi, L., Yang, H., Kovarik, L., Mehdi, B. L., Liyu, A., Gehm, M. E., and Browning, N. D.. A sub-sampled approach to extremely low-dose STEM. United States: N. p., 2018. Web. doi:10.1063/1.5016192.
Stevens, A., Luzi, L., Yang, H., Kovarik, L., Mehdi, B. L., Liyu, A., Gehm, M. E., & Browning, N. D.. A sub-sampled approach to extremely low-dose STEM. United States. doi:10.1063/1.5016192.
Stevens, A., Luzi, L., Yang, H., Kovarik, L., Mehdi, B. L., Liyu, A., Gehm, M. E., and Browning, N. D.. Mon . "A sub-sampled approach to extremely low-dose STEM". United States. doi:10.1063/1.5016192.
@article{osti_1433504,
title = {A sub-sampled approach to extremely low-dose STEM},
author = {Stevens, A. and Luzi, L. and Yang, H. and Kovarik, L. and Mehdi, B. L. and Liyu, A. and Gehm, M. E. and Browning, N. D.},
abstractNote = {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. Lastly, 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.},
doi = {10.1063/1.5016192},
journal = {Applied Physics Letters},
number = 4,
volume = 112,
place = {United States},
year = {Mon Jan 22 00:00:00 EST 2018},
month = {Mon Jan 22 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on January 22, 2019
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