title: Megawatt level UV output from [110] Cr⁴⁺:YAG passively Q-switched microchip laser.
abstract: Recent development of megawatt peak power, giant pulse microchip lasers has opened new opportunities for efficient wavelength conversion, provided the output of the microchip laser is linearly polarized. We obtain > 2 MW peak power, 260 ps, 100 Hz pulses at 266 nm by fourth harmonic conversion of a linearly polarized Nd:YAG microchip laser that is passively Q-switched with [110] cut Cr⁴⁺:YAG. The SHG and FHG conversion efficiencies are 85% and 51%, respectively.
authors: Institute for Molecular Science, Laser Research Center, 38 Nishigonaka, Myodaiji, Okazaki 444-8585, Japan. bhandari@ims.ac.jp
authors: Rakesh
authors: R
authors: Bhandari
authors: Takunori
authors: T
authors: Taira