We have demonstrated FEL lasing at the third harmonic in JAERI-FEL driven by a superconducting linac. The lasing was achieved with a super enhanced gold-coated mirror tuned to 7 μm, which is a gold-coated copper mirror with Zn-Se multi-layer deposited on the surface. Lasing at the third harmonic is in the single-supermode regime with an average power of 15 W. The small-signal gain is estimated from the cavity-length detuning curve found to be 7.5%.
|ジャーナル||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|出版ステータス||Published - 2001 11月 21|
|イベント||22nd International Free Electron Laser Conference (FEL 2000) - Durham, NC, United States|
継続期間: 2000 8月 13 → 2000 8月 18
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