Abstract

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

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