中国激光, 2014, 41 (9): 0902005, 网络出版: 2014-08-15   

激光尾场电子加速器驱动的全光学FEL物理模拟研究

Simulation Study of All Optical-FEL Based on the Laser Wakefield Accelerator
作者单位
1 中国科学院上海应用物理研究所, 上海 201800
2 中国科学院大学, 北京 100049
3 中国科学院上海光学精密机械研究所, 上海 201800
摘要
对中国科学院上海光学精密机械研究所(SIOM)即将开展的基于激光尾场加速(LWFA)电子束的自由电子激光(FEL)实验(SIOM-FEL)进行了数值模拟研究,提出利用直接外种子激光驱动的方案来获得FEL辐射。理论和仿真结果表明,采用直接外种子激光驱动模式,在束流能散为1%,发射度为0.3 mm·mrad的情况下,提高峰值电流强度到10 kA可以得到接近200倍增益的FEL辐射,而利用具有横向梯度的波荡器也可以在较低的束流强度条件下获得较高的辐射增益。
Abstract
Simulations of free electron laser (FEL) experiments based on the laser-wakefield accelerator, which will be conducted at Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Acadomy of Sciences, are performed. Direct-seeding with high harmonic generation (HHG) is proposed as the scheme for free-electron laser experiments at SIOM (SIOM-FEL). The theoretical and simulation results show that the FEL signal will be amplified about 200 times compared with the initial high harmonic generation when the electron beam energy spread is 1%, the emittance is 0.3 mm·mrad and the peak current is about 10 kA. What′s more, the application of the transverse gradient undulator (TGU) can furtuer improve the FEL performance even with a relatively low peak current.
参考文献

[1] P Emma, R Akre, J Arthur, et al.. First lasing and operation of an ngstrom-wavelength free-electron laser[J]. Nature Photonics, 2010, 4(9): 641-647.

[2] K Tiedtke, A Azima, N Bargen, et al.. The soft x-ray free-electron laser FLASH at DESY: beamlines, diagnostics and end-stations[J]. New J Phys, 2009, 11(2): 023029.

[3] C J Bocchetta. FERMI@Elettra-Conceptual Design Report[M]. Trieste: Simcrotrone, 2007.

[4] G Lambert, T Hara, T Tanikawa, et al.. The SCSS test accelerator free-electron laser seeded by harmonics produced in gas[C]. UVX-Collogue Surles Sources Coherents at Incoherents UV, 2009. 85-91.

[5] J Bodewadt, A Azima, F Curbis, et al.. sFLASH-First results of direct seeding at FLASH[J]. Proceedings of FEL 2010, 2010.

[6] Nuhn H O. lINAC Coherent Light Source (LCLS) Conceptual Design Report[R]. Stanford: Stanford Linear Accelerator Center, 2002.

[7] Altarelli M, Brinkmann R, Chergui M. The Europeau X-ray Free-Electron Laser: Technical Design Report[R]. DESY XFEL Project Group, 2007.

[8] Nasr A M Hafz, Tae Moon Jeong, I W Choi, et al.. Stable generation of GeV-class electron beams from self-guided laser-plasma channels[J]. Nature Photonics, 2008, 2(9): 571-577.

[9] Kazuhisa Nakajim. Compact X-ray sources: towards a table-top free-electron laser[J]. Nature Physics, 2008, 4(2): 92-93.

[10] S M Hooker. Developments in laser-driven plasma accelerators[J]. Nature Photonics, 2013, 7(10): 775-782.

[11] N Andreev, S Kuznetsov. Electron bunch compression in laser wakefield acceleration[C]. Proceeding of the Workshop on 2nd Generation Laser and Plasma Accelerators, 2001. 24-29.

[12] J S Liu, C Q Xia, W T Wang, et al.. All-optical cascaded laser wakefield accelerator using ionization-induced injection[J]. Physical Review Letters, 2011, 107(3): 035001.

[13] Z T Zhao, D Wang, J H Chen, et al.. First lasing of an echo-enabled harmonic generation free-electron laser[J]. Nature Photonics, 2012, 6(6): 360-363.

[14] L H Yu, M Babzien, I Ben-zvi, et al.. High-gain harmonic-generation free-electron laser science[J]. Science, 2000, 289(5481): 932-934.

[15] E L Saldin, E A Schneidmiller, M V Yurkov. Study of a noise degradation of amplification process in a multistage HGHG FEL[J]. Optics Communications, 2002, 202(1): 169-187.

[16] P Schmüser, M Dohlus, J Rossbach. Ultraviolet and Soft X-Ray Free Electron Lasers[M]. Springer Tracts in Modern Physics, 2009. 229.

[17] Kwang-Je Kim, Z Huang, R Lindberg, Introduction to the Physics of Free Electron Lasers[R]. Palo Alto: Leland Stanford Jounior University, 2010.

[18] Xie M. Exact and variational solutions of 3D eigenmodes in high gain FELs[J]. Nuclear Instruments and Methods in Physics Research Section A, 2000, 445(1): 59-66.

[19] S Reiche. GENESIS 1.3: a fully 3D time-dependent FEL simulation code[J]. Nuclear Instruments and Methods in Physics Research Section A, 1999, 429(1): 243-248.

[20] T Smith, J M J Madey, L R Elias, et al.. Reducing the sensitivity of a free electron laser to electron energy[J]. Journal of Applied Physics, 1979, 50(7): 4580-4583.

[21] Zhirong Huang, Ying Y, Schroeder C B, et al.. Compact X-ray free-electron laser from a laser-plasma accelerator using a transverse-gradient undulator[J]. Physical Review Letters, 2012, 109(20): 204801.

王光磊, 姚海凤, 张彤, 王兴涛, 王文涛, 王成, 曾志男, 刘建胜, 王东. 激光尾场电子加速器驱动的全光学FEL物理模拟研究[J]. 中国激光, 2014, 41(9): 0902005. Wang Guanglei, Yao Haifeng, Zhang Tong, Wang Xingtao, Wang Wentao, Wang Cheng, Zeng Zhinan, Liu Jiansheng, Wang Dong. Simulation Study of All Optical-FEL Based on the Laser Wakefield Accelerator[J]. Chinese Journal of Lasers, 2014, 41(9): 0902005.

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