Open AccessUniversal anti-reflection blocks for 4-port periodic microresonator structures
Author(s) -
Zhenshan Yang,
J. E. Sipe
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.024966
Subject(s) - reflection (computer programming) , optics , block (permutation group theory) , port (circuit theory) , photonic crystal , reflection coefficient , periodic sequence , physics , sequence (biology) , range (aeronautics) , computer science , materials science , mathematics , electronic engineering , engineering , geometry , composite material , programming language , mathematical analysis , biology , genetics
We introduce universal "anti-reflection blocks" for periodic microresonator sequences consisting of 4-port unit cells. When added to the end of a finite periodic sequence, the anti-reflection block can eliminate the reflectivity at a given frequency ωref and significantly reduce it in a frequency range around ωref. These anti-reflection blocks are universal: By adjusting only their characteristic parameters, they can be made applicable to any 4-port periodic sequence, regardless of the detailed inside structure of its unit cells, at any frequency within the photonic bands.