title: Ultraviolet solid-state Ce:YLF laser at 325 nm.
abstract: We describe the first reported observation of stimulated emission from a 5d-4f transition in a triply ionized rare-earth-doped crystal. Ce(+3) ions in LiYF(4) (YLF), optically pumped at 249 nm, emitted at 325.5 nm, the shortest wavelength yet obtained from an optically pumped solid-state laser. The large fluorescence linewidth of the laser transition makes the Ce:YLF laser a potentially tunable source of coherent near-ultraviolet radiation between 305 and 335 nm.
authors.forename: D J
authors.initials: DJ
authors.lastname: Ehrlich
authors.forename: P F
authors.initials: PF
authors.lastname: Moulton
authors.forename: R M
authors.initials: RM
authors.lastname: Osgood