A previously developed theory for the transmission of radiation in over moded hollow circular waveguides is extended to cover walls of arbitrary material. The extension relies on approximations to the Fresnel reflection coefficients near grazing angles of incidence for a material characterized by its complex refractive index.
© 1987 Optical Society of America
Original Manuscript: June 3, 1987
Published: December 1, 1987
Bertram S. Frost and Philip M. Gourlay, "Geometrical optics treatment of circular lightguides: general wall material," Appl. Opt. 26, 5112-5117 (1987)