Direct generation of tunable UV picosecond laser pulses using spectrotemporal selection

摘要

Direct generation of tunable picosecond (90 ps) ultraviolet (UV) dye laser pulses within the 320～400 nm range is described using a single nanosecond pump- ing laser and spectrotemporal selection of a low-Q, short, UV dye laser cavity emis- sion. Typical output picosecond energies of about 10 μJ are obtained with pump energy of only 5～8 mJ at 266 nm of 308 nm. These picosecond pulse energies are amplified up to 193μJ by two double-pass amplifiers.