Patents Examined by Alfred A. Smith
  • Method of generating tunable coherent ultraviolet light at wavelengths below 2500 A
    Patent number: 3947688
    Abstract: A method for obtaining efficient production of short-wavelength, continuously-tunable ultraviolet light by parametric mixing of optical frequency radiation in a nonlinear crystal. The method involves mixing the second harmonic of a tunable, visible-wavelength laser, an organic dye laser, for example, with the fixed-wavelength output of a near-infrared laser, e.g., a Nd:YAG laser, in a conventional nonlinear crystalline material such as ADP or KDP.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: March 30, 1976
    Assignee: Oregon Graduate Center for Study and Research
    Inventor: Gail A. Massey