Abstract
Fully tunable deep UV pulses of 30 fs duration are generated in an all-solid-state scheme from 200 fs long pump pulses of a Ti:sapphire amplifier. The tunability comes from a noncollinear optical parametric amplifier with tailored spectral width. The output pulses are frequency-doubled in a 50 μm BBO crystal and subsequently mixed in a 32 μm BBO crystal with part of the Ti:sapphire output. The compression is solely performed in the visible. This makes the setup extremely simple and efficient. Less than 400 μJ pump energy suffice to obtain submicrojoule deep UV pulses. The strategy for the bandwidth and chirp management is explained in detail.
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