Generation of high-power picosecond continuously tunable radiation between 215 and 245 nm by mixing of Raman and optical parametric light

Upconversion by mixing of optical parametric light with the fourth harmonic of a neodymium:yttrium aluminum garnet (Nd:YAG) laser and fourth harmonic pumped H2 and N2 Raman light has been used to generate high-power picosecond continuously tunable UV light ranging from 215–245 nm with an energy of more than 100 μJ. The tunability is based on generation of optical parametric light with a range from 900 to 1400 nm.