Short-pulse length effects of the seed laser in high-gain harmonic generation free-electron laser

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2004-2010年

	Short-pulse length effects of the seed laser in high-gain harmonic generation free-electron laser
	Deng, HX(邓海啸） ; Wang, XT（王兴涛） ; Dai, ZM（戴志敏）
刊名	PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
	2008
卷号	11 期号:4
ISSN号	1098-4402
通讯作者	Deng, HX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
英文摘要	In order to generate coherent hard x-ray free-electron laser ( FEL), cascading stages of high-gain harmonic generation ( HGHG) scheme usually employ seed pulse with longitudinal length down to tens of femtoseconds. Such a short pulse length ( SPL) seed laser, with broad bandwidth in the spectral domain, can no longer be characterized by monochromatic light in FEL equations. In this paper, a set of self-consistent, multifrequency FEL equations is derived to describe the interaction between the seed laser and the electrons in the modulator of HGHG. Moreover, the SPL effects of the seed laser on the electron beam's energy modulation, the output pulse length, the output peak power, and the output wavelength tuning in HGHG are theoretically and numerically investigated. Study demonstrates that the SPL seed laser seriously and significantly influences the HGHG performances, and these influences have to be taken into account in the design and optimization of the seeded FEL scheme.
学科主题	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000256587600004
公开日期	2012-04-18
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7822]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Deng, HX,Wang, XT,Dai, ZM. Short-pulse length effects of the seed laser in high-gain harmonic generation free-electron laser[J]. PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,2008,11(4).
APA	Deng, HX,Wang, XT,&Dai, ZM.(2008).Short-pulse length effects of the seed laser in high-gain harmonic generation free-electron laser.PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,11(4).
MLA	Deng, HX,et al."Short-pulse length effects of the seed laser in high-gain harmonic generation free-electron laser".PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 11.4(2008).