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Pirozhkov, A. S.; Kando, Masaki; Esirkepov, T. Z.; Gallegos, P.*; Ahmed, H.*; Ragozin, E. N.*; Faenov, A. Ya.*; Pikuz, T. A.*; Kawachi, Tetsuya; Sagisaka, Akito; et al.
no journal, ,
We experimentally demonstrate new regime of high-order harmonic generation by relativistic-irradiance lasers in gas jet targets. With 9 TW laser, the harmonics reach the "water window" spectral region. Using 120 TW laser, we demonstrate the photon number scalability, with the energy of 40 J/sr per harmonic at 120 eV. We introduce a new mechanism of high-order harmonic generation based on the relativistic plasma phenomena and catastrophe theory. The mechanism is illustrated with high-resolution 2D and 3D PIC simulations. We discuss the potential applicability of the new coherent X-ray source for bioimaging.
Kondo, Kiminori
no journal, ,
The development of laser driven ion beam cancer therapy machine is the most important aim of the project of generation of Photo Medical Valley in KPSI. This development would be explained with showing the recent experimental results.