Polyethylene vacuum windows that are suitable for use in far-infrared optics are described. Interference fringes are eliminated by making windows wedge shaped.
© 1992 Optical Society of America
Original Manuscript: May 1, 1991
Published: February 1, 1992
M. E. Ziaei and B. P. Clayman, "Wedge-shaped polyethylene far-infrared windows," Appl. Opt. 31, 437-438 (1992)