Abstract

In this work, we propose a filter structure using a one-dimensional ferroelectric-dielectric periodic multilayer, $\mathrm{air}/{[{(\mathrm{ABA})}^{N_s}\mathrm{C}]}^{Np}{(\mathrm{ABA})}^{N_s}/\mathrm{air}$, where $N_s$ and $N_p$ are the two numbers of periods. Here, B is a dielectric material of ${\mathrm{SiO}}_2$, C is the same as B with a different thickness, and A is taken to be a ferroelectric material ${\mathrm{Ba}}_{55}{\mathrm{Sr}}_{45}{\mathrm{TiO}}_3+30\%{\mathrm{Mg}}_2{\mathrm{SiO}}_4$, whose dielectric constant is very high ($ϵ=439$ at 10 GHz). The results show that the transmittance spectra have $N_s$-channel groups at microwave frequencies and these groups can be classified into two types. The first type has only one channel group with $N_p$ narrower channels. The other has $N_s-1$ groups, each of which has $N_p+1$ broader channels. In this filter structure the group number and channel number of each group can be determined simply by changing $N_s$ and $N_p$.

© 2016 Optical Society of America

Design of multichannel filters based on the use of periodic Cantor dielectric multilayers

Tzu-Chyang King and Chien-Jang Wu
Appl. Opt. 53(29) 6749-6755 (2014)

Tunable filter using ferroelectric-dielectric periodic multilayer

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

Photonic band gap structure for a ferroelectric photonic crystal at microwave frequencies

Tzu-Chyang King, De-Xin Chen, Wei-Cheng Lin, and Chien-Jang Wu
Appl. Opt. 54(29) 8738-8741 (2015)

Magnetic-field tunable multichannel filter in a plasma photonic crystal at microwave frequencies

Tsung-Wen Chang, Jia-Ren Chang Chien, and Chien-Jang Wu
Appl. Opt. 55(4) 943-946 (2016)

Design of a terahertz photonic crystal transmission filter containing ferroelectric material

Tzu-Chyang King, Jian-Jie Chen, Kai-Chun Chang, and Chien-Jang Wu
Appl. Opt. 55(29) 8276-8279 (2016)