title: Excitation of Bloch-like surface waves in quasi-crystals and aperiodic dielectric multilayers.
abstract: The existence of Bloch surface waves in periodic dielectric multilayer structures with a surface defect is well known. Not yet recognized is that quasi-crystals and aperiodic dielectric multilayers can also support Bloch-like surface waves. In this work, we numerically show the excitation of Bloch-like surface waves in Fibonacci quasi-crystals and Thue-Morse aperiodic dielectric multilayers using the prism coupling method. We report improved surface electric field intensity and penetration depth of Bloch-like surface waves in the air side in such structures compared to their periodic counterparts.
authors.forename: Vijay
authors.initials: V
authors.lastname: Koju
authors.forename: William M
authors.initials: WM
authors.lastname: Robertson