Abstract

A fractal multilayer structure made of two dielectric materials can exhibit photonic bandgap (PBG). In this work, with the use of this PBG, we study the transmission properties of periodic triadic Cantor set structures. The results indicate that the structure can be used to design multichannel filters with channel number equal to $N-1$ for a given number of periods, $N$. In addition, the channel frequencies can be designed at will. The considered structure provides another new type of design for a tunable multichannel filter.

© 2014 Optical Society of America

Analysis of multigroup and multichannel filtering properties in a ferroelectric-dielectric periodic multilayer

Tzu-Chyang King, Ya-Wen Li, Yu-Huai Li, and Chien-Jang Wu
Appl. Opt. 55(24) 6630-6633 (2016)

Forbidden gaps in finite periodic and quasi-periodic Cantor-like dielectric multilayers at normal incidence

E. Cojocaru
Appl. Opt. 40(34) 6319-6326 (2001)

Tunable filter using ferroelectric-dielectric periodic multilayer

Nirmala Maria D’souza and Vincent Mathew
Appl. Opt. 54(9) 2187-2192 (2015)

Superconductor based ternary periodic multilayered structure as a single and multichanneled filter in the terahertz region

Nirmala Maria D’souza and Vincent Mathew
Appl. Opt. 56(24) 6765-6769 (2017)

Optical fractal resonances in Cantor-like photonic crystals

Xiaoling Chen, Hao Ni, Dong Zhao, and Yang Wang
Appl. Opt. 61(26) 7786-7792 (2022)