論文

査読有り 筆頭著者
2017年11月

Quantitative electric field mapping in thin specimens using a segmented detector: Revisiting the transfer function for differential phase contrast

ULTRAMICROSCOPY
  • Takehito Seki
  • ,
  • Gabriel Sanchez-Santolino
  • ,
  • Ryo Ishikawa
  • ,
  • Scott D. Findlay
  • ,
  • Yuichi Ikuhara
  • ,
  • Naoya Shibata

182
開始ページ
258
終了ページ
263
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.ultramic.2017.07.013
出版者・発行元
ELSEVIER

Differential phase contrast in scanning transmission electron microscopy can visualize local electromagnetic fields inside specimens. The contrast derived from first moments, the so-called center of mass, of the diffraction patterns for each probe position can be quantitatively related to the local electromagnetic field under the phase object approximation. While only approximate first moments can be obtained with a segmented detector, in weak phase objects the fields can be accurately quantified on the basis of a phase contrast transfer function. Through systematic image simulations we further show that the quantification based on the approximated first moment is a good approximation also for strong phase objects. (C) 2017 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1016/j.ultramic.2017.07.013
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000413436500033&DestApp=WOS_CPL

エクスポート
BibTeX RIS