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| 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）; Deng, HX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China | |
| 2008 | |
| Source Publication | PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
 |
| ISSN | 1098-4402 |
| Volume | 11Issue:4 |
| Abstract | 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. |
| Subject Area | Physics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000256587600004 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/7822 |
| Collection | 中科院上海应用物理研究所2004-2010年 |
| Corresponding Author | Deng, HX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
| Recommended Citation GB/T 7714 | Deng, HX,Wang, XT,Dai, ZM,et al. 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,&Deng, HX .(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). |
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