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Characterization of an ultrahigh peak power XeF(CA) excimer laser system

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7 Author(s)
Hofmann, T. ; Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA ; Sharp, T.E. ; Dane, C.B. ; Wisoff, P.J.
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The gain characteristics of an electron-beam pumped XeF(CA) excimer amplifier operating in the blue-green spectral region were investigated for several laser pulse lengths. Saturation energy densities of 50 and 80 mJ/cm2 were measured for injected laser pulse durations of 250 fs and ~100 ps, respectively. A gain bandwidth of 60 nm was observed with ~100-ps pulse injection. Using an optimized unstable resonator design, the laser amplifier has produced 275-mJ pulses with a pulse duration of 250 fs and a 2.5 times diffraction-limited beam quality, making the XeF(CA) amplifier the first compact laser system in the visible spectral region to reach peak powers at the terawatt level

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Quantum Electronics, IEEE Journal of  (Volume:28 ,  Issue: 5 )