title: An all solid-state UV source based on a frequency quadrupled, passively Q-switched 946 nm laser.
abstract: We report a 236 nm light source with 20 mW of average power based on critically phase-matched second-harmonic generation in a beta-barium borate crystal at room temperature. The fundamental light source was a passively Q-switched 946 nm Nd:YAG laser tunable from 10 - 38 kHz and with a pulse length of 16 ns. In the generation of 473 nm light, periodically poled KTP and BiBO was compared in terms of conversion efficiency and stability.
authors.forename: Sandra
authors.initials: S
authors.lastname: Johansson
authors.forename: Stefan
authors.initials: S
authors.lastname: Bjurshagen
authors.forename: Carlota
authors.initials: C
authors.lastname: Canalias
authors.forename: Valdas
authors.initials: V
authors.lastname: Pasiskevicius
authors.forename: Fredrik
authors.initials: F
authors.lastname: Laurell
authors.forename: Ralf
authors.initials: R
authors.lastname: Koch