Phase reconstruction in annular bright-field scanning transmission electron microscopy.
A novel technique for reconstructing the phase shifts of electron waves was applied to Cs-corrected scanning transmission electron microscopy (STEM). To realize this method, a new STEM system equipped with an annular aperture, annularly arrayed detectors and an arrayed image processor has been developed and evaluated in experiments. We show a reconstructed phase image of graphite particles and demonstrate that this new method works effectively for high-resolution phase imaging.
Department of Electrical Engineering and Computer Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan Global Research Center for Environment and Energy Based on Nanomaterials Science, Furo-cho, Chikusa, Nagoya 464-8502, Japan takafu_i@nuee.nagoya-u.ac.jp.
Takafumi
T
Ishida
Global Research Center for Environment and Energy Based on Nanomaterials Science, Furo-cho, Chikusa, Nagoya 464-8502, Japan EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8502, Japan Nanostructures Research Laboratory, Japan Fine Ceramics Center, 2-4-1 Mutsuno, Atsuta, Nagoya 456-8587, Japan.
Tadahiro
T
Kawasaki
Global Research Center for Environment and Energy Based on Nanomaterials Science, Furo-cho, Chikusa, Nagoya 464-8502, Japan EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8502, Japan.
Takayoshi
T
Tanji
Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tempaku, Nagoya 468-8502, Japan.
Tetsuji
T
Kodama
Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Kinki University, 3-4-1 Kowakae, Higashiosaka 577-8502, Japan.
Takaomi
T
Matsutani
APCO Ltd., 522-10 Kitano-machi, Hachioji 192-0906, Japan.
Keiko
K
Ogai
Department of Electrical and Electronic Engineering, Faculty of Engineering, Osaka Electro-Communication University, 18-8 Hatsu-cho, Neyagawa 572-8530, Japan.
Takashi
T
Ikuta
annular aperture; annular array of detectors; figure-eight-shaped Fourier filter; phase reconstruction