Patent ID: 7852549
Filing Date: 2010-12-14
Classification: G02F,H01L

Abstract:
1. An apparatus for producing coherent, pulsed ultraviolet light with pulse durations that range between 1 ps and 1 μs, the apparatus comprising: one or more source lasers with light output in the visible or near-infrared frequency range; and one or more frequency conversion stages, at least one of the one or more frequency conversion stages including a nonlinear critically phase-matched frequency conversion device and one or more optical elements including: a reflector, a focusing element, a polarization-controlling optic, a wavelength separator, or a fiber optic component; wherein the nonlinear critically phase-matched frequency conversion device includes a huntite-type aluminum double borate nonlinear optical material configured to produce frequency-converted light having a wavelength between 190 and 350 nm, the huntite-type aluminum double borate nonlinear optical material having a composition given by RAl