• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Measurement of vortex beam phase by electron holography

Research Project

Project/Area Number 18H03475
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Harada Ken  国立研究開発法人理化学研究所, 創発物性科学研究センター, 上級研究員 (20212160)

Co-Investigator(Kenkyū-buntansha) 森 茂生  大阪府立大学, 工学(系)研究科(研究院), 教授 (20251613)
児玉 哲司  名城大学, 理工学部, 教授 (50262861)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords不確定性原理 / 二重スリット / 電子波干渉 / 電子相関計測 / 遡及計測
Outline of Final Research Achievements

An optically zero propagation distance condition was realized in a double-slit experiment by using a 1.2-MV field-emission transmission electron microscope. Interference fringes composed of single-electron dots were controlled by using a novel optical system and two electron biprisms as interferometers. Using a V-shaped double slit, we observed simultaneously the interference features under the pre-interference condition, interference condition and post-interference condition of electron waves. This setup is similar to that of the de Broglie’s gedanken experiment. By identify which slit an electron has passed through and which side of the electron biprism the electron has passed by, i.e. path information, we succeeded in controlling the electron trajectory. We conclude that interference occurs when the path information is not available, while no interference occurs when the path information is available. These results suggest that interference is related to information.

Academic Significance and Societal Importance of the Research Achievements

本研究により、単電子像の干渉計測が量子力学の不思議を見せる実験から、粒子線の量子効果を直接計測できる手法に発展した。また、本研究で開発された電子波干渉光学系により、電子線ではできなかったフーリエ変換ホログラフィーやホロコーン・フーコー法が実現でき、新たな電子波干渉顕微鏡の利用法が拓かれた。これらの新技術により、実空間から逆空間への伝搬中の電子らせん波の位相分布が明らかとなった。さらに、点過程の理論を単電子の分布像に適用するにあたり、地理学で利用されているK関数法およびL関数法を応用することにより、電子源から放出される電子の収束/分散関係が、伝播・検出後の電子分布から解析可能となった。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (50 results)

All 2021 2020 2019 2018

All Journal Article (15 results) (of which Peer Reviewed: 15 results,  Open Access: 8 results) Presentation (33 results) (of which Int'l Joint Research: 14 results,  Invited: 1 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Electron interference experiment with optically zero propagation distance for V-shaped double slit2021

    • Author(s)
      Harada Ken、Akashi Tetsuya、Takahashi Yoshio、Kodama Tetsuji、Shimada Keiko、Ono Yoshimasa A.、Mori Shigeo
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 2 Pages: 022006-022006

    • DOI

      10.35848/1882-0786/abd91e

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lensless Fourier transform electron holography applied to vortex beam analysis2020

    • Author(s)
      Harada Ken、Ono Yoshimasa A、Takahashi Yoshio
    • Journal Title

      Microscopy

      Volume: 69 Issue: 3 Pages: 176-182

    • DOI

      10.1093/jmicro/dfaa008

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetic bubbles in an M-type hexagonal ferrite observed by hollow-cone Foucault imaging and small-angle electron diffraction2020

    • Author(s)
      Kotani Atsuhiro、Nakajima Hiroshi、Kawaguchi Atsushi、Fujibayashi Yukihiro、Uchihashi Kento、Shimada Keiko、Harada Ken、Mori Shigeo
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: 9 Pages: 095003-095003

    • DOI

      10.35848/1347-4065/aba9e9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a Mach-Zehnder type electron interferometer on a 1.2-MV field-emission transmission electron microscope2020

    • Author(s)
      Akashi Tetsuya、Takahashi Yoshio、Harada Ken
    • Journal Title

      Microscopy

      Volume: 69 Issue: 6 Pages: 411-416

    • DOI

      10.1093/jmicro/dfaa040

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interference and interferometry in electron holography2020

    • Author(s)
      Harada Ken
    • Journal Title

      Microscopy

      Volume: 70 Issue: 1 Pages: 3-16

    • DOI

      10.1093/jmicro/dfaa033

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent advances in small-angle electron diffraction and Lorentz microscopy2020

    • Author(s)
      Mori Shigeo、Nakajima Hiroshi、Kotani Atsuhiro、Harada Ken
    • Journal Title

      Microscopy

      Volume: 70 Issue: 1 Pages: 59-68

    • DOI

      10.1093/jmicro/dfaa048

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hollow-cone Foucault Imaging of Magnetic Textures in Hexagonal Ferrite ; BaFe10.35Sc1.6Mg0.05O192020

    • Author(s)
      Mori Shigeo、Kotani Atsuhiro、Harada Ken
    • Journal Title

      Microscopy and Microanalysis

      Volume: 26 Issue: S2 Pages: 1766-1769

    • DOI

      10.1017/s1431927620019273

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hollow-cone Foucault Imaging of Magnetic Microstructures in Large Magnetostrictive FeGa Alloy2020

    • Author(s)
      Mori Shigeo、Kawaguchi A、Harada Ken
    • Journal Title

      Microscopy and Microanalysis

      Volume: 26 Issue: S2 Pages: 2146-2147

    • DOI

      10.1017/s1431927620020590

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Double-Slit Electron Interference Experiment with Phase Modulation2020

    • Author(s)
      Harada Ken、Takahashi Yoshio、Akashi Tetsuya、Ono Yoshimasa、Kodama Tetsuji、Mori Shigeo
    • Journal Title

      Microscopy and Microanalysis

      Volume: 26 Issue: S2 Pages: 2152-2153

    • DOI

      10.1017/s1431927620020620

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lens-less Fourier Transform Holography for Electron Vortex Beams2020

    • Author(s)
      Harada Ken、Ono Yoshimasa、Takahashi Yoshio
    • Journal Title

      Microscopy and Microanalysis

      Volume: 26 Issue: S2 Pages: 2484-2486

    • DOI

      10.1017/s1431927620021741

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electron holography for vortex beams2020

    • Author(s)
      Harada Ken、Shimada Keiko、Ono Yoshimasa A.
    • Journal Title

      Applied Physics Express

      Volume: 13 Issue: 3 Pages: 0320031-4

    • DOI

      10.35848/1882-0786/ab7059

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electron holography on Fraunhofer diffraction2019

    • Author(s)
      Harada Ken、Niitsu Kodai、Shimada Keiko、Kodama Tetsuji、Akashi Tetsuya、Ono Yoshimasa A、Shindo Daisuke、Shinada Hiroyuki、Mori Shigeo
    • Journal Title

      Microscopy

      Volume: 1 Issue: 3 Pages: 1-7

    • DOI

      10.1093/jmicro/dfz007

    • NAID

      120006784420

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Properties of electrostatic correcting systems with annular apertures2019

    • Author(s)
      Kodama Tetsuji、Kawasaki Tadahiro、Ikuta Takashi
    • Journal Title

      Microscopy

      Volume: 68 Pages: 457-466

    • DOI

      10.1093/jmicro/dfz035

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 非対称な二重スリットを用いた電子波干渉実験2019

    • Author(s)
      原田研、明石哲也、森茂生
    • Journal Title

      顕微鏡

      Volume: 54 Pages: 98-103

    • NAID

      130007704145

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hollow-Cone Foucault Imaging Method2019

    • Author(s)
      Ken Harada, Atsushi Kawaguchi, Atsuhiro Kotani, Yukihiro Fujibayashi, Keiko Shimada and Shigeo Mori
    • Journal Title

      Applied. Physics Express

      Volume: 12 Pages: 042003-14

    • NAID

      210000135643

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 電子波干渉におけるコヒーレンスと移送変調の検討2021

    • Author(s)
      原田 研、高橋由夫、明石哲也、児玉哲司、小野義正、森茂生
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電子波における計数画像の点分布の空間パターン解析2021

    • Author(s)
      中島右裕、児玉哲司、明石哲也、高橋由夫、森茂生、原田 研
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Double Silt Electron Interference Experiment with Phase Modulation2020

    • Author(s)
      Ken Harada, Yoshio Takahashi, Tetsuya Akashi, Yoshimasa A. Ono Tetsuji Kodama and Shigeo Mori
    • Organizer
      Microscopy & Microanalysis 2020: (Microscopy Society of America)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lens-less Fourier Transform Holography for Electron Vortex Beams2020

    • Author(s)
      Ken Harada, Yoshimasa A. Ono and Yoshio Takahashi
    • Organizer
      Microscopy & Microanalysis 2020: (Microscopy Society of America)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hollow-cone Foucault imaging of magnetic microstructures in large magnetostrictive FeGa alloy2020

    • Author(s)
      Shigeo Mori, Atsushi Kawaguchi, Atsuhiro Kotani, Hiroshi Numakura, Yui Ishii and Ken Harada
    • Organizer
      Microscopy & Microanalysis 2020: (Microscopy Society of America)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hollow-cone Foucault imaging of magnetic textures in hexagonal ferrite; BaFe10.35Sc1.6Mg0.05O192020

    • Author(s)
      Shigeo Mori, Atsuhiro Kotani and Ken Harada
    • Organizer
      Microscopy & Microanalysis 2020: (Microscopy Society of America)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アモルファス軟磁性合金の結晶化過程と磁区構造2020

    • Author(s)
      大迫明弘、吉年規治、藤林征宏、内橋研人、石井悠衣、原田 研、森茂生
    • Organizer
      日本金属学会第166回講演大会(2020年春季)
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] Double Slit Electron Wave Experiment with Phase Modulation2020

    • Author(s)
      原田 研、高橋由夫、明石哲也、児玉哲司、小野義正、森 茂生
    • Organizer
      日本顕微鏡学会第76回学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電子計数画像の点分布の空間パターン解析2020

    • Author(s)
      中島右裕、児玉哲司、明石哲也、高橋由夫、森茂生、原田 研
    • Organizer
      日本顕微鏡学会第76回学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Lens-less Fourier Transform Holography for Vortex Beams2020

    • Author(s)
      原田 研、小野義正、高橋由夫
    • Organizer
      日本顕微鏡学会第76回学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電子計数画像の点分布の空間パターン2020

    • Author(s)
      中島右裕、児玉哲司、明石哲也、高橋由夫、森茂生、原田 研
    • Organizer
      電気・電子・情報関係学会 東海支部連合大会(令和2年度)
    • Related Report
      2020 Annual Research Report
  • [Presentation] レンズレスフーリエ変換ホログラフィーによる電子らせん波の観察2020

    • Author(s)
      原田 研、小野義正、高橋由夫
    • Organizer
      日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 位相変調を伴う二重スリット干渉実験2020

    • Author(s)
      原田 研、高橋由夫、明石哲也、児玉哲司、嶌田惠子、小野義正、森茂生
    • Organizer
      日本表面真空学会学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電子計数画像の点分布の空間パターン解析の試み2020

    • Author(s)
      中島右裕、児玉哲司、明石哲也、高橋由夫、森茂生、原田 研
    • Organizer
      日本顕微鏡学会第63回シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 位相変調を伴う電子波干渉実験2020

    • Author(s)
      原田 研、高橋由夫、明石哲也、児玉哲司、嶌田惠子、小野義正、森茂生
    • Organizer
      日本物理学会第75回年次大会(2020年)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Double-Slit Electron Interference Experiment with Optically Zero Propagation Distance Using Electron Biprisms2019

    • Author(s)
      Ken Harada
    • Organizer
      Microscopy Society of Canada 2019 (MSC2019)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Properties of electrostatic correcting systems with circular hole and annular apertures2019

    • Author(s)
      Tetsuji Kodama, Tadahiro Kawasaki and Takashi Ikuta
    • Organizer
      The 6th International Symposium on Advanced Microscopy and Theoretical Calculations (AMTC-6)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Double-Slit Electron Interference Experiment with Zero Propagation Distance Using Electron Biprism2019

    • Author(s)
      Ken Harada, Tetsuji Kodama, Tetsuya Akashi, Yoshio Takahashi, Keiko Shimada, Yoshimasa A. Ono, Daisuke Shindo, Hiroyuki Shinada and Shigeo Mori
    • Organizer
      Microscopy & Microanalysis 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electron holography on Fraunhofer diffraction using double slit2019

    • Author(s)
      Ken Harada, Kodai Niitsu, Keiko Shimada, Tetsuji Kodama, Tetsuya Akashi, Yoshimasa A. Ono, Daisuke Shindo, Hiroyuki Shinada and Shigeo Mori
    • Organizer
      Microscopy & Microanalysis 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hollow-cone Foucault imaging method for magnetic structure observations2019

    • Author(s)
      Ken Harada, Atsushi Kawaguchi, Atsuhiro Kotani, Yukihiro Fujibayashi, Keiko Shimada and Shigeo Mori
    • Organizer
      Microscopy & Microanalysis 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hollow-cone Foucault Imaging of Magnetic Microstructures in Large Magnetostrictive FeGa Alloy2019

    • Author(s)
      Atsushi Kawaguchi, Atsuhiro Kotani, Ken Harada, Hiroshi Numakura, Yui Ishii and Shigeo Mori
    • Organizer
      Microscopy Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interference Experiment with Optically Zero Propagation Distance between Double-Slit and Observation Plane2019

    • Author(s)
      Ken Harada, Tetsuji Kodama, Tetsuya Akashi, Yoshio Takahashi, Keiko Shimada, Yoshimasa A. Ono, Daisuke Shindo, Hiroyuki Shinada and Shigeo Mori
    • Organizer
      Microscopy Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hollow-Cone Foucault Imaging for Magnetic Structure Observations2019

    • Author(s)
      Ken Harada, Atsushi Kawaguchi, Atsuhiro Kotani, Yukihiro Fujibayashi, Keiko Shimada and Shigeo Mori
    • Organizer
      Microscopy Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visualization of Vortex Beam Phase by Electron Holography2019

    • Author(s)
      Ken Harada
    • Organizer
      International Conference on Materials and Systems for Sustainability (ICMaSS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] バイプリズムを用いた伝播距離ゼロでの二重スリット電子波干渉実験2019

    • Author(s)
      原田 研、児玉哲司、明石哲也、高橋由夫、嶌田惠子、小野義正、進藤大輔、品田博之、森 茂生
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 電子線フラウンホーファーホログラフィー2019

    • Author(s)
      原田 研、新津甲大、嶌田惠子、児玉哲司、明石哲也、小野義正、進藤大輔、品田博之、森 茂生
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ホロコーン・フーコー法2019

    • Author(s)
      原田 研、川口惇史、小谷厚博、藤林征宏、嶌田惠子、森 茂生
    • Organizer
      日本顕微鏡学会第75回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 電子線バイプリズムを用いた伝搬距離ゼロでの二重スリット電子波干渉実験2019

    • Author(s)
      原田研、児玉哲司、明石哲也、高橋由夫、嶌田惠子、小野義正、進藤大輔、品田博之、森茂生
    • Organizer
      日本物理学会第74回年次大会: (九州大学)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 1.2MV-TEMを用いた非対称な二重スリットによる電子波干渉実験2018

    • Author(s)
      原田研、明石哲也、新津甲大、嶌田惠子、小野義正、進藤大輔、品田博之、森茂生
    • Organizer
      日本顕微鏡学会第74回学術講演会: (久留米シティプラザ)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 電界レンズによる球面収差補正器の基本特性の解析2018

    • Author(s)
      小國宏樹,児玉哲司,川﨑忠寛,生田孝
    • Organizer
      日本顕微鏡学会第74回学術講演会: (久留米シティプラザ)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 電界レンズによる球面収差補正器の解析2018

    • Author(s)
      小國宏樹,児玉哲司,川﨑忠寛,生田孝
    • Organizer
      平成30年度 電気・電子・情報関係学会東海支部連合大会: (名城大学)
    • Related Report
      2018 Annual Research Report
  • [Presentation] New interference experiment with asymmetric double slits by 1.2 MV FE-TEM2018

    • Author(s)
      Ken Harada, Tetsuya Akashi, Kodai Niitsu, Keiko Shimada, Yoshimasa A. Ono, Daisuke Shindo, Hiroyuki Shinada and Shigeo Mori
    • Organizer
      Microscopy & Microanalysis 2018: (Baltimore, Maryland, USA)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interference experiment with asymmetric double slit by 1.2 MV-TEM2018

    • Author(s)
      Ken Harada, Tetsuya Akashi, Kodai Niitsu, Keiko Shimada, Yoshimasa A. Ono, Daisuke Shindo, Hiroyuki Shinada and Shigeo Mori
    • Organizer
      19th International Microscopy Congress (IMC19): (Sydney, Australia)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 干渉光学系ユニット、荷電粒子線干渉装置、及び荷電粒子線干渉像観察方法2019

    • Inventor(s)
      原田 研、嶌田惠子、森茂生、小谷厚博
    • Industrial Property Rights Holder
      理化学研究所、大阪府立大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 干渉光学系ユニット、荷電粒子線干渉装置、及び荷電粒子線干渉像観察方法2018

    • Inventor(s)
      原田研、嶌田惠子、森茂生、小谷厚博
    • Industrial Property Rights Holder
      理化学研究所、大阪府立大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-140161
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi