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Generation of Coherent VUV Vortex beam by Synchrotron Radiation

Research Project

Project/Area Number 26286081
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Quantum beam science
Research InstitutionInstitute for Molecular Science

Principal Investigator

KATOH Masahiro  分子科学研究所, 極端紫外光研究施設, 教授 (30185871)

Co-Investigator(Renkei-kenkyūsha) KONOMI Taro  高エネルギー加速器研究機構, 加速器研究施設, 助教 (20634158)
HOSAKA Masahito  名古屋大学, シンクロトロン光研究センター, 准教授 (60290897)
YAMAMOTO Naoto  名古屋大学, シンクロトロン光研究センター, 助教 (60377918)
TAKASHIMA Yoshifumi  名古屋大学, シンクロトロン光研究センター, 教授 (40303664)
Research Collaborator FUJIMOTO Masaki  
SASAKI Shigemi  
MIRIAN Najmeh  
MOCHIHASHI Akira  
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords加速器 / 放射光 / 角運動量 / コヒーレンス / 電磁波 / 光渦 / 真空紫外線 / アンジュレータ / 電子ビーム / レーザー / 量子ビーム / 紫外線 / 回折 / コヒーレント / 電子線
Outline of Final Research Achievements

We succeeded in generating an optical vortex beam, which carries the orbital angular momentum from a diffraction-limited high energy electron beam passing through a circular polarization undulator. We have demonstrated that it has a spiral wave-front by interfering two spatially coherent optical vortex beams. We have demonstrated for the first time that a phase singularity exists at the beam center by a double-slit diffraction experiment. As the underlying physics of this phenomenon, we have shown theoretically for the first time that radiation from an electron in circular motion possesses a spiral wave-front and carries orbital angular momentum.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report

Research Products

(13 results)

All 2017 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Limitations in photoionization of helium by an extreme ultraviolet optical vortex2017

    • Author(s)
      T. Kaneyasu, Y. Hikosaka, M. Fujimoto, T. Konomi, M. Katoh, H. Iwayama, E. Shigemasa
    • Journal Title

      Physical Review A

      Volume: 95

    • DOI

      10.1103/physreva.95.023413

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Angular Momentum of Twisted Radiation from an Electron in Spiral Motion2017

    • Author(s)
      M. Katoh, M. Fujimoto, H. Kawaguchi, K. Tsuchiya, K. Ohmi, T. Kaneyasu, Y. Taira, M. Hosaka, A. Mochihashi, Y. Takashima
    • Journal Title

      Physical Review Leters.

      Volume: 118

    • DOI

      10.1103/physrevlett.118.094801

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 自由電子による光渦の放射2017

    • Author(s)
      加藤政博
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学豊中キャンパス(大阪府豊中市)
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] 自由電子による光渦の放射2016

    • Author(s)
      加藤政博
    • Organizer
      ビーム物理研究会2016
    • Place of Presentation
      SPring-8(兵庫県佐用郡佐用町)
    • Year and Date
      2016-11-24
    • Related Report
      2016 Annual Research Report
  • [Presentation] OBSERVATION OF WAVEFRONT STRUCTURE OF HELICAL UNDULATOR RADIATION2016

    • Author(s)
      M. Fujimoto, M. Katoh, N. S. Mirian, M. Hosaka, A. Mochihashi, Y. Takashima,Y. Taira, S. Sasaki
    • Organizer
      International Beam Instrumentation Conference
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2016-09-11
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 円偏光アンジュレータから発生する光渦の観測2016

    • Author(s)
      藤本將輝、加藤政博、ミリアン ナジメ、保坂将人、高嶋圭史、持箸晃、平義隆、佐々木茂美
    • Organizer
      第13回日本加速器学会年会
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] EXPERIMENTAL STUDY ON OPTICAL VORTEX FROM A HELICAL UNDULATOR AT UVSOR-III2016

    • Author(s)
      M. Hosaka, K. Miyamoto, S. Sasaki, K. Kuroda, T. Konomi, N. Yamamoto, N. S. Mirian, M. Katoh
    • Organizer
      7th International Particle Accelerator Conference
    • Place of Presentation
      BEXCO, Busan, Korea
    • Year and Date
      2016-05-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fresnel and Fraunhofer Diffraction of Optical Vortex Beam from Helical Undulator2016

    • Author(s)
      N. S. Mirian, M. Katoh, M. Hosaka, N. Yamamoto, T. Konomi, K. Kuroda, A. Miyamoto, K. Miyamoto, S. Sasaki
    • Organizer
      第29回日本放射光学会年会
    • Place of Presentation
      柏の葉カンファレンスセンター(千葉県柏市)
    • Year and Date
      2016-01-09
    • Related Report
      2015 Annual Research Report
  • [Presentation] Recent Developments of UVSOR-III2015

    • Author(s)
      M. Katoh, J. Yamazaki, H. Kenji, M. Hosaka, Y. Takashima, M. Adachi, T. Konomi, N. Yamamoto
    • Organizer
      6th International Particle Accelerator Conference
    • Place of Presentation
      Richmond, USA
    • Year and Date
      2015-05-03 – 2015-05-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] Analysis of Lights' Orbital Angular Momentum from Helical Undulator Harmonics2015

    • Author(s)
      S. Sasaki, A. Miyamoto, M. Hosaka, N. Yamamoto, T. Konomi, M. Katoh
    • Organizer
      6th International Particle Accelerator Conference
    • Place of Presentation
      Richmond, USA
    • Year and Date
      2015-05-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アンジュレータ高次光が運ぶ光の軌道角運動量2015

    • Author(s)
      佐々木茂美、宮本篤、加藤政博、許斐太郎、保坂将人、山本尚人
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 軌道角運動量を持つ円偏光アンジュレータ高次光干渉実験2015

    • Author(s)
      佐々木茂美、宮本篤、加藤政博、許斐太郎、保坂将人、山本尚人、今園孝志、小池雅人
    • Organizer
      第28回日本放射光学会年会
    • Place of Presentation
      立命館大学草津キャンパス(滋賀県草津市)
    • Year and Date
      2015-01-10 – 2015-01-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] 円偏光アンジュレータ高次光が運ぶ光の軌道角運動量観測2014

    • Author(s)
      佐々木茂美、宮本篤、加藤政博、許斐太郎、保坂将人、山本尚人
    • Organizer
      第11回日本加速器学会年会
    • Place of Presentation
      リンクステーションホール青森(青森県青森市)
    • Year and Date
      2014-08-09 – 2014-08-11
    • Related Report
      2014 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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