Title :
New type of guided waves in birefringent media
Author :
Torner, Lluís ; Torres, Juan P. ; Mihalache, Dumitru
Author_Institution :
Dept. of Signal Theory & Commun., Polytech. Univ. Catalonia, Barcelona, Spain
Abstract :
The existence of waves guided by thin dielectric films deposited over a positive birefringent crystal for waveguide parameters below usual cutoff is discussed. This additional kind of guided wave has a hybrid nature and occurs in properly tailored waveguides when a suitable orientation of the crystal optical axis, relative to the waveguide axis, is taken. The dependence of the allowed orientations on various waveguide parameters has been analyzed. Noticeable fast variations, with potential interest for switching applications, have been found.<>
Keywords :
birefringence; optical films; optical waveguide theory; below usual cutoff waveguide parameters; birefringent media; crystal optical axis; crystal orientation; guided waves; hybrid nature; optical switches; positive birefringent crystal; properly tailored waveguides; switching applications; thin dielectric films; waveguide axis; Birefringence; Crystalline materials; Dielectric materials; Glass; Integrated optics; Optical buffering; Optical films; Optical refraction; Optical variables control; Optical waveguides;
Journal_Title :
Photonics Technology Letters, IEEE
