High throughput grazing incidence mirrors have been fabricated from float glass using a new inexpensive technique. An array of twelve such mirrors including grazing angles from 3 to 15° has been fabricated and tested. Optical measurement of this array shows a line spread function of 6.3-min of arc FWHM with 90% energy enclosed within 13 min of arc. Three-mirror arrays are used to provide 1-D focusing for a diffuse extreme ultraviolet spectrometer. This paper presents the fabrication techniques and testing procedures used, as well as the mirror performance results.
© 1988 Optical Society of America
Original Manuscript: September 23, 1987
Published: April 15, 1988
Simon E. Labov, "Figured grazing incidence mirrors from reheated float glass," Appl. Opt. 27, 1465-1469 (1988)