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Report No.

Development of the high spatiotemporal quality laser system

Kiriyama, Hiromitsu

In our institute, we are studying (1) a new scheme for separating isotopes for reduction of radioactive wastes in the nuclear fuel cycle, (2) a laser driven ion accelerator for cancer therapy. For these applications, it is necessary to improve the spatiotemporal quality and to evaluate the compact set-up of high intensity laser system. For a compact set-up, we have developed laser-diode (LD) pumped solid-state laser system based on Yb:YAG thin-disk. For a high temporal quality, we have developed nonlinear amplifier based on optical parametric chirped-pulse amplification (OPCPA). For a high spatial quality, we have introduced diffractive optical element (DOE) into high energy glass pump laser. We discuss the basic design aspects and present the results from our experimental investigations of these laser systems.



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