Quasi-Bragg conditions in Thue-Morse dielectric multilayers
Journal
Optics Letters
Journal Volume
38
Journal Issue
22
Pages
4562-4565
Date Issued
2013
Author(s)
Abstract
The existence of quasi-Bragg conditions (QBCs) in Thue-Morse dielectric multilayers (TMDMs), based on high reflectance and large forbidden gap regions in its transmission spectra, is presented. In contrast to a single traditional Bragg condition (TBC) in periodic bilayers, there are three QBCs in TMDMs. The formula for each of these QBCs is derived. The results show that one of these QBCs just overlaps the TBC. However, a singular point with perfect transmission exists in this QBC at the quarter-wave stack, at which high reflection exists in the periodic bilayers.
Type
journal article