| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for producing coherent, pulsed ultraviolet light with pulse durations that range between 1 ps and 1 μs.SOLUTION: An apparatus for pulsed harmonic ultraviolet lasers includes: one or more light source lasers in the visible or near-infrared frequency range; and one or more frequency conversion (FC) stages. At least one of the one or more FC stages includes a nonlinear FC device and one or more optical elements. The optical elements include a reflector, a focusing element, a polarization-controlling optic, a wavelength separator, or a fiber optic component. The nonlinear FC device includes a huntite-type aluminum double borate nonlinear optical material configured to produce FC light having a wavelength between 190 and 350 nm. A light transmissivity of the nonlinear optical material is greater than 70% in the wavelength range of 190 to 350 nm. |
