Dielectric waveguides of trapezoidal cross section mfr - by masked irradiation of polyphenylsiloxane to obtain a focal guide

摘要

Dielectric waveguides made by coating a substrate with a layer of resin which can act as an electrosensitive negative, and then by exposing the resin to a traversing beam of electrons directed through a filter having a trapezoidal cross-section. Used for making waveguides having a non-rectangular cross-section, esp. for producing guides with a pseudo parabolic cross section to produce guides with a focal effect.