Seeding of extreme ultraviolet free electron laser with high-order harmonic

Author

Takahashi, E.J. ; Togashi, T. ; Midorikawa, K. ; Aoyama, M. ; Yamakawa, K. ; Sato, T. ; Iwasaki, A. ; Owada, S. ; Yamanouchi, K. ; Hara, T. ; Matsubara, S. ; Ohshima, T. ; Otake, Y. ; Tanaka, H. ; Tanaka, T. ; Tomizawa, H. ; Watanabe, T. ; Yabashi, M. ; I

Author_Institution

RIKEN Adv. Sci. Inst., Wako, Japan

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

Frontiers in optical science in the short-wavelength region have greatly been expanded by the advent of intense, single-pass free-electron lasers (FELs) based on a self-amplified spontaneous emission (SASE) scheme. However, their temporal profile and frequency-domain spectra are composed of random and uncontrollable spikes, exhibiting shot-to-shot fluctuation originating from the stochastic start-up process intrinsic to spontaneous radiation. The most straightforward method for improving the temporal coherence of FEL is to inject the high-order harmonic (HH) generated by a laser into an FEL amplifier. In this paper, the authors first demonstrate the 13th harmonic (61 nm) of a Ti:Sapphire laser in the plateau region was injected as the SPring-8 Compact SASE source test accelerator.

Keywords

free electron lasers; optical harmonic generation; sapphire; solid lasers; superradiance; titanium; Al₂O₃:Ti; FEL; extreme ultraviolet free electron laser seeding; high order harmonic; self amplified spontaneous emission; wavelength 61 nm; Atom optics; Free electron lasers; Harmonic analysis; Laser beams; Optimized production technology; Ultraviolet sources; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5943030

Filename

5943030