We first generated seeded FEL radiation in the EUV region at 61.2 nm with the 13th harmonic of a Ti:sapphire laser. We observed single-peak spectra with drastic enhancements of intensity by nearly three-orders of magnitude.
© 2011 OSA
T. Togashi, E. Takahashi, K. Midorikawa, M. Aoyama, H. Yamakawa, T. Sato, A. Iwasaki, S. Owada, T. Okino, K. Yamanouchi, M. E. Couprie, T. Hara, N. Kumagai, S. Matsubara, M. Nagasono, T. Ohshima, Y. Otake, T. Shintake, H. Tanaka, T. Tanaka, K. Togawa, H. Tomizawa, T. Watanabe, M. Yabashi, and T. Ishikawa, "Extreme ultraviolet free electron laser seeded by high-order harmonic," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper CWG5.
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