An Efficient Frequency-Quadrupling Scheme for Generating Femtosecond UV Radiation Near 200 nm
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abstract
We design and demonstrate an efficient fourth-harmonic generation scheme for obtaining femtosecond pulses near 200 nm from the output of a moderately tunable Ti:sapphire ultrafast amplifier. Overall per pulse conversion efficiency of 1.8% is reported. 2013 The Optical Society.