Project/Area Number |
26286081
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Quantum beam science
|
Research Institution | Institute 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.
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