MHz repetition-rate, Multiport coherent XUV source based on intracavity HHG (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

MHz repetition-rate, Multiport coherent XUV source based on intracavity HHG

Caption

a, A schematic diagram of 3 MHz repetition-rate, multiport coherent XUV source by intracavity HHG with a Yb:YAG thin disk mode-locked oscillator. Lower left insets are plasma emission from gas jets. b, Inside view of a vacuum container. A 100-m long ring cavity with two HHG ports is installed in the vacuum container (5 m long x 2 m wide x 0.7 m high). All the optics involved in the cavity are fixed in water-cooled holders to avoid their thermal deformation or damage caused by the heat of kW-level intra-cavity average power in the vacuum environment. You can see white tubes for cooling water flow

Credit

by Natsuki Kanda, Tomohiro Imahoko, Koji Yoshida, Akihiro Tanabashi, A. Amani Eilanlou, Yasuo Nabekawa, Tetsumi Sumiyoshi, Makoto Kuwata-Gonokami, and Katsumi Midorikawa

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