Helical Phase Structure of Radiation from an Electron in Circular Motion

被引：68

作者：

Katoh, M. ^{[1
,2
]}

Fujimoto, M. ^{[1
,2
]}

Mirian, N. S. ^{[1
]}

Konomi, T. ^{[1
,2
]}

Taira, Y. ^{[3
]}

Kaneyasu, T. ^{[4
]}

Hosaka, M. ^{[5
]}

Yamamoto, N. ^{[5
]}

Mochihashi, A. ^{[5
]}

Takashima, Y. ^{[5
]}

Kuroda, K. ^{[6
]}

Miyamoto, A. ^{[7
]}

Miyamoto, K. ^{[7
]}

Sasaki, S. ^{[7
]}

机构：

[1] Natl Inst Nat Sci, Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[2] Sokendai, Okazaki, Aichi, Japan

[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[4] Saga Light Source, Tosu, Saga 8410005, Japan

[5] Nagoya Univ, Nagoya, Aichi 4640814, Japan

[6] Univ Tokyo, Kashiwa, Chiba 2770882, Japan

[7] Hiroshima Univ, Higashihiroshima, Japan

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

关键词：

ORBITAL ANGULAR-MOMENTUM; LIGHT; INTERFERENCE; VORTICES; EMISSION;

D O I：

10.1038/s41598-017-06442-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We theoretically show that a single free electron in circular motion radiates an electromagnetic wave possessing helical phase structure, which is closely related to orbital angular momentum carried by it. We experimentally demonstrate it by interference and double-slit diffraction experiments on radiation from relativistic electrons in spiral motion. Our results indicate that photons carrying orbital angular momentum should be created naturally by cyclotron/synchrotron radiations or Compton scatterings in various situations in cosmic space. We propose promising laboratory vortex photon sources in various wavelengths ranging from radio wave to gamma-rays.

引用

页数：8

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