Invariant properties of helical-circular metallic waveguides

15 November 1978

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 33 (10) , 874-876
https://doi.org/10.1063/1.90197

Abstract

Experimental evidence shows that toroidal or helical‐circular metallic waveguides, operating on the whispering‐gallery principle, can be bent significantly without affecting either their ray‐guiding or modal properties. These remarkable properties, reported here for the first time for any type of surface guide, result from the fact that the allowed deformations are geodesic and conserve the curvature of the rays. Scanning in one or two dimensions with a diffraction‐limited beam has been achieved.

Keywords

This publication has 3 references indexed in Scilit:

Optical surface waves along a toroidal metallic guide
Applied Physics Letters, 1978
Light waves guided by a single curved metallic surface
Applied Optics, 1978
Flexible infrared-transmissive metal waveguides
Applied Physics Letters, 1976