The damage tracks of high energy ions in dielectric materials can be etched until overlapping conical etch pits are obtained. If the depth of the pits is >λ/2, an effective graded-index layer with very low reflectivity is obtained. Broadband antireflection treatment achieving reflectivities of <10−4 has been applied to plastics like Lexan and Mylar.
© 1980 Optical Society of America
Original Manuscript: March 10, 1980
Published: September 1, 1980
E. Spiller, I. Haller, R. Feder, J. E. E. Baglin, and W. N. Hammer, "Graded-index AR surfaces produced by ion implantation on plastic materials," Appl. Opt. 19, 3022-3026 (1980)