• 커뮤니티
  • 세미나/콜로퀴움
세미나/콜로퀴움

FEL experiments for atoms, molecules, and atomic clusters in the EUV t…

본문

" Following FLASH operation in Germany [1], SPring-8 Compact SASE Source (SCSS) test accel-erator in Japan [2] started user operation in 2008. These facilities provide EUVFEL pulses. In 2009, LCLS [3] started user operation. SACLA, Japanese XFEL [4], lased in June 2011 in the hard X-ray regime and started user operation in March 2012. We have been studying multi-photon processes in atoms, molecules, and clusters at these FEL facilities, from EUV to X-rays, using electron and ion momentum spectroscopy [5-17]. Also we have been performing pump-probe experiments, to probe the atomic motion in reaction, to see the evolution of nanoplasma formed by the FEL pulse, etc. During my talk, I will describe some showcase examples to illustrate how we enjoy new opportunities to investigate unexplored new areas of science using these new light sources.

I am grateful to all the collaborators who are co-authors of Refs. [5-17] and who are on SACLA campaigns. The work is supported by X-ray Free Electron Laser Utilization Research Project and of MEXT.



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[2] T. Shintake et al., Nat. Photonics 2, 555 (2008).

[3] P. Emma et al., Nat. Photonics 4, 641 (2010).

[4] T. Ishikawa et al. Nat. Photonics (in press) doi:10.1038/nphoton.2012.141.

[5] H. Fukuzawa et al., Phys. Rev. A 79, 031201(R) (2009).

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[11] A. Rouzee et al., Phys. Rev. A 83, 031401(R) (2011).

[12] N. Berrah et al., Proc. Nat. Acad. Sci. 108, 16912 (2011); P. Sal�n et al. Phys. Rev. Lett. 108, 153003 (2012).

[13] R. Moshammer et al., Opt. Express 19, 21698 (2011).

[14] E.V. Gryzlova et al., Phys. Rev. A 84, 063405 (2011).

[15] M. Meyer et al., Phys. Rev. Lett. 108, 063007 (1012).

[16] P. Sal�n et al., Phys. Rev. Lett. 108, 153003 (2012).

[17] K. Ishikawa and K. Ueda, Phys. Rev. Lett. 108, 033003 (2012); R. Ma et al. ar-Xiv:1204.4812v1 [physics.atom-ph] (2012)"
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