Super-resolution phase reconstruction technique in electron holography with a stage-scanning system

Dan Lei, Kazutaka Mitsuishi, Ken Harada, Masayuki Shimojo, Dongying Ju, Masaki Takeguchi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Super-resolution image reconstruction is a digital signal processing technique that allows creating a high-resolution image from multiple lowresolution images taken at slightly different positions. We introduce the super-resolution image reconstruction technique into electron holography for reconstructing phase images as follows: the studied specimen is shifted step-wise with a high-precision piezo holder, and a series of holograms is recorded. When the step size is not a multiple of the CCD pixel size, processing of the acquired series results in a higher pixel density and spatial resolution as compared to the phase image obtained with conventional holography. The final resolution exceeds the limit of the CCD pixel size divided by the magnification.

Original languageEnglish
Article number02BC23
JournalJapanese Journal of Applied Physics
Volume53
Issue number2 PART 2
DOIs
Publication statusPublished - 2014

Fingerprint

Electron holography
holography
Pixels
Image reconstruction
Scanning
Charge coupled devices
scanning
pixels
image reconstruction
charge coupled devices
electrons
Holography
Holograms
Image resolution
Digital signal processing
holders
magnification
signal processing
spatial resolution
Processing

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Super-resolution phase reconstruction technique in electron holography with a stage-scanning system. / Lei, Dan; Mitsuishi, Kazutaka; Harada, Ken; Shimojo, Masayuki; Ju, Dongying; Takeguchi, Masaki.

In: Japanese Journal of Applied Physics, Vol. 53, No. 2 PART 2, 02BC23, 2014.

Research output: Contribution to journalArticle

Lei, Dan ; Mitsuishi, Kazutaka ; Harada, Ken ; Shimojo, Masayuki ; Ju, Dongying ; Takeguchi, Masaki. / Super-resolution phase reconstruction technique in electron holography with a stage-scanning system. In: Japanese Journal of Applied Physics. 2014 ; Vol. 53, No. 2 PART 2.
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