Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode

被引：0

作者：

Yada, A ^{[1
]}

Takasago, K ^{[1
]}

Ito, SJ ^{[1
]}

Yanagida, T ^{[1
]}

Yang, JF ^{[1
]}

Washio, M ^{[1
]}

Torizuka, K ^{[1
]}

Endo, A ^{[1
]}

机构：

[1] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

来源：

LASER RESONATORS AND BEAM CONTROL V | 2002年 / 4629卷

关键词：

pulse shaping; square pulse; flat top; ultraviolet; RF-gun; emittance;

D O I：

10.1117/12.469490

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrated generation of square-shaped ultraviolet pulses and that they reduces the emittance of electron beams from laser-photocathode RF-gun. Some frequency components of femtosecond pulses from a Ti:sapphire oscillator are modulated with a pulse shaper that consists of a lens pair, gratings, and a liquid crystal spatial light modulator (LC-SLM) to generate square-shaped pulses. The shaped pulses were amplified up to 3 mJ through a regenerative amplifier, and were converted to ultraviolet region with two different nonlinear crystals. Energy of the shaped pulses was about 100 muJ which is sufficient to generate electron charge of 1 nC. In our experiment, emittance of electron beam was reduced to as low as almost the half of that with non-shaped pulses.

引用

页码：213 / 221

页数：9

共 9 条

[1] Generation of submili-joule picosecond square shaped pulses for low emittance electron generation in photocathode RF-GUN
Takasago, K
Yada, A
Miura, T
Washio, M
Kannari, F
Torizuka, K
Endo, A
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, 2001, 14 (1-4) : 151 - 156
[2] Generation and measurement of sub-picosecond electron bunch in photocathode rf gun
Li Wei-Wei
He Zhi-Gang
Jia Qi-Ka
CHINESE PHYSICS C, 2013, 37 (12)
[3] Generation and measurement of sub-picosecond electron bunch in photocathode rf gun
李伟伟
何志刚
贾启卡
ChinesePhysicsC, 2013, 37 (12) : 94 - 98
[4] Generation of amplified square shaped picosecond pulses with phase-only filters for an efficient electron generation in an RF-GUN
Takasago, K
Yada, A
Miura, T
Washio, M
Kannari, F
Zhang, ZG
Torizuka, K
Endo, A
LEOS 2000 - IEEE ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS. 1 & 2, 2000, : 300 - 301
[5] Low-emittance electron-beam generation with laser pulse shaping in photocathode radio-frequency gun
Yang, J.
Sakai, F.
Yanagida, T.
Yorozu, M.
Okada, Y.
Takasago, K.
Endo, A.
Yada, A.
Washio, M.
Journal of Applied Physics, 2002, 92 (03): : 1608 - 1612
[6] Low-emittance electron-beam generation with laser pulse shaping in photocathode radio-frequency gun
Yang, J
Sakai, F
Yanagida, T
Yorozu, M
Okada, Y
Takasago, K
Endo, A
Yada, A
Washio, M
JOURNAL OF APPLIED PHYSICS, 2002, 92 (03) : 1608 - 1612
[7] Spatial beam profiles of femtosecond X-ray pulses generated by laser Compton scattering from a low-emittance electron beam
M. Yorozu
J. Yang
Y. Okada
T. Yanagida
F. Sakai
S. Ito
A. Endo
Applied Physics B, 2003, 76 : 293 - 297
[8] Spatial beam profiles of femtosecond X-ray pulses generated by laser Compton scattering from a low-emittance electron beam
Yorozu, M
Yang, J
Okada, Y
Yanagida, T
Sakai, F
Ito, S
Endo, A
APPLIED PHYSICS B-LASERS AND OPTICS, 2003, 76 (03): : 293 - 297
[9] Low emittance electron beam generation from a laser wakefield accelerator using two laser pulses with different wavelengths
Xu, X. L.
Wu, Y. P.
Zhang, C. J.
Li, F.
Wan, Y.
Hua, J. F.
Pai, C. -H.
Lu, W.
Yu, P.
Joshi, C.
Mori, W. B.
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2014, 17 (06):

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