Title :
Quasi-periodic Bragg structures with thin lossy layers
Author :
Borulko, V. ; Drobakhin, O. ; Sidorov, Denis
Author_Institution :
Dnipropetrovsk Nat. Univ., Dnipropetrovsk, Ukraine
Abstract :
The behavior of quasi-periodic and aperiodic (chirp) Bragg structures with thin lossy layers has been considered. In order to calculate the dependence of the reflection coefficient against frequency, transmission matrix method was used. A deep minimum of reflection coefficient for any frequency is implemented by proper choice of the thickness of the last thin film and its optical distance to the substrate. The possibility of providing broadband reflection by aperiodic structures has been offered.
Keywords :
absorbing media; electromagnetic wave reflection; inhomogeneous media; periodic structures; aperiodic Bragg structures; chirp Bragg structures; quasiperiodic Bragg structure; reflection coefficient; thin lossy layer; transmission matrix method; Absorption; Dielectrics; Optical films; Optical losses; Optical reflection; Periodic structures;
Conference_Titel :
Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2011 XVth International Seminar/Workshop on
Conference_Location :
Lviv
Print_ISBN :
978-1-4577-0897-8
