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We are developing a high intense chirped pulse amplification (CPA) Nd:glass laser to investigate the fast igniter concept as a new approach toward high gain inertial confinement fusion.1 The 100 TW, 50 J, 0.5 ps pulses were focused onto high- density compressed plasmas produced by the GEKKO-XII (12 beam, 20 kJ) laser since 1997.2 During 2000, the 100 TW Laser system was upgraded to 1 PW by introducing a large pulse compressor, which consisted of a parallel gold grating pair with 1-m diameter. Initial laser experiments and first plasma experiments were carried out in Aug. 2001.
© 2002 Optical Society of America
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