title: Continuous-wave ultraviolet generation at 320 nm by intracavity frequency doubling of red-emitting Praseodymium lasers.
abstract: We describe a new approach for the generation of coherent ultraviolet radiation. Continuous-wave ultraviolet light at 320 nm has been obtained by intracavity frequency doubling of red-emitting Praseodymium lasers. Lasing at the 640-nm fundamental wavelength in Pr:LiYF(4) and Pr:BaY(2)F(8) was realized by employing an optically pumped semiconductor laser at 480 nm as pump source.Using LiB(3)O(5) as nonlinear medium, ~19 mW of ultraviolet radiation with ~9% optical efficiency with respect to absorbed power was reached for both laser crystals; the visible-to-ultraviolet conversion efficiency was 26% and 35% for Pr:LiYF(4) and Pr:BaY(2)F(8), respectively.
authors.forename: A
authors.initials: A
authors.lastname: Richter
authors.forename: N
authors.initials: N
authors.lastname: Pavel
authors.forename: E
authors.initials: E
authors.lastname: Heumann
authors.forename: G
authors.initials: G
authors.lastname: Huber
authors.forename: D
authors.initials: D
authors.lastname: Parisi
authors.forename: A
authors.initials: A
authors.lastname: Toncelli
authors.forename: M
authors.initials: M
authors.lastname: Tonelli
authors.forename: A
authors.initials: A
authors.lastname: Diening
authors.forename: W
authors.initials: W
authors.lastname: Seelert