Abstract

We present a two-stage noncollinear optical parametric chirped-pulse amplification system that generates 7.9fs pulses containing 130mJ of energy at an 805nm central wavelength and 10Hz repetition rate. These 16TW light pulses are compressed to within 5% of their Fourier limit and are carefully characterized by the use of home-built pulse diagnostics. The contrast ratio before the main pulse has been measured as 104, 108, and 1011 at t=3.3ps, t=5ps, and t=30ps, respectively. This source allows for experiments in a regime of relativistic light–matter interactions and attosecond science.

© 2009 Optical Society of America

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