A device for detailed measurement of diffraction grating efficiencies and over-all performance in the VUV has been designed and constructed at the Naval Research Laboratory. The system employs semiautomated mechanisms to scan the face of the grating with a narrow monochromatic beam, and an efficiency map of the grating surface is produced on a strip chart recorder. Grating efficiency in the various diffracted orders and intensity of light scattered between orders may also be measured. A unique feature is the ability to determine the angle and effectiveness of grating blaze and variations in blaze under different conditions of illumination.
© 1974 Optical Society of America
Original Manuscript: August 22, 1973
Published: May 1, 1974
D. J. Michels, T. L. Mikes, and W. R. Hunter, "Optical Grating Evaluator: a Device for Detailed Measurement of Diffraction Grating Efficiencies in the Vacuum Ultraviolet," Appl. Opt. 13, 1223-1229 (1974)