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A fourth-harmonic (263-nm) probe beam has been commissioned on OMEGA EP. A novel diagnostic has been developed for it to diagnose plasma-density profiles using angular spectral filters to generate a contour map of refractive angles.
3 ps pulses are amplified to >10 GW peak power in a TEA CO2 laser using ac Stark broadening. Demonstration of such broadband amplification opens opportunities for a powerful mid-IR source at a high-repetition rate.
A train of multiterawatt, 3 ps CO2 laser pulses is used for proton acceleration in a plasma at the critical density. Maximum energy of ions is strongly affected by a temporal structure of the pulse.
15TW picosecond 10μm laser pulses are obtained at the UCLA Neptune Laboratory achieving record CO2 laser power. This peak power opens unique opportunities for applications in high-field experiments in the mid-IR range.
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