We have developed a hybrid Ti:sapphire–Nd:glass laser system that produces more than 1500 TW (1.5 PW) of peak power. The system produces 660 J of power in a compressed 440±20 fs pulse by use of 94-cm master diffraction gratings. Focusing to an irradiance of >7×1020 W/cm 2 is achieved by use of a Cassegrainian focusing system employing a plasma mirror.
© 1999 Optical Society of America
[Optical Society of America ]
M. D. Perry, D. Pennington, B. C. Stuart, G. Tietbohl, J. A. Britten, C. Brown, S. Herman, B. Golick, M. Kartz, J. Miller, H. T. Powell, M. Vergino, and V. Yanovsky, "Petawatt laser pulses," Opt. Lett. 24, 160-162 (1999)