CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Slippage effect on energy modulation in seeded free-electron lasers with frequency chirped seed laser pulses
Feng, Chao; Deng, Haixiao; Wang, Guanglei; Wang, Dong; Zhao, Zhentang
2013
Source PublicationPHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
ISSN1098-4402
Volume16Issue:6
AbstractFree-electron lasers (FELs) seeded with external lasers hold great promise for generating high power radiation with nearly transform-limited bandwidth in the soft x-ray region. However, it has been pointed out that the initial seed laser phase error will be amplified by the frequency up-conversion process, which may degrade the quality of the output radiation produced by a harmonic generation scheme. In this paper, theoretical and simulation studies on frequency chirp amplification in seeded FEL schemes with slippage effect taken into account are presented. It is found that the seed laser imperfection experienced by the electron beam can be significantly smoothed by the slippage effect in the modulator when the slippage length is comparable to the seed laser pulse length. This smoothing effect allows one to preserve the excellent temporal coherence of seeded FELs in the presence of large frequency chirp in the seed laser. Our studies show that the tolerance on frequency chirp in the seed laser for generating nearly transform-limited soft x-ray pulses in seeded FELs is much looser than previously thought and fully coherent radiation at nanometer wavelength may be reached with current technologies.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000321001800002
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13907
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Feng, Chao,Deng, Haixiao,Wang, Guanglei,et al. Slippage effect on energy modulation in seeded free-electron lasers with frequency chirped seed laser pulses[J]. PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,2013,16(6).
APA Feng, Chao,Deng, Haixiao,Wang, Guanglei,Wang, Dong,&Zhao, Zhentang.(2013).Slippage effect on energy modulation in seeded free-electron lasers with frequency chirped seed laser pulses.PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,16(6).
MLA Feng, Chao,et al."Slippage effect on energy modulation in seeded free-electron lasers with frequency chirped seed laser pulses".PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 16.6(2013).
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