Electrical tunability of an omnidirectional reflector in liquid-crystal heterostructure composed of periodic and quasi-periodic sturcture

Author

Bingxiang Li ; Shaobin Liu ; Siyuan Liu ; Guowen Ding

Author_Institution

Coll. of Electron. & Inf. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2015

Firstpage

1

Lastpage

3

Abstract

We designed an omnidirectional reflector for both the transverse electric (TE) and the transverse magnetic (TM) modes in one dimensional liquid-crystal-based heterostructure composed of the ThueMorse multilayered structure and periodic medium. The electrical tunabilities of the reflector are theoretically studied by the Berreman´s matrix method. The omnidirectional reflective bands (ORB) of the TE and TM modes have different behaviours. For the TE mode, the ORB is electric independent, and is wider than its counterpart of the TM mode. The ORB of the TM mode becomes narrow with the increase of the incident angle. The polarity-independent ORB was observed in the proposed structure.

Keywords

electro-optical devices; liquid crystals; matrix algebra; optical elements; optical multilayers; Berreman matrix method; TE mode; TM mode; ThueMorse multilayered structure; liquid crystal heterostructure; omnidirectional reflective band; omnidirectional reflector electrical tunability; polarity-independent ORB; quasiperiodic structure; transverse electric mode; transverse magnetic mode; Dielectrics; Electric fields; Electromagnetic scattering; Liquid crystals; Nonhomogeneous media; Optical fiber communication; Periodic structures; Berrenman´s matrix method; Electrical tunability; Periodic material; omnidirectional reflector;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communications and Networks (ICOCN), 2015 14th International Conference on

Conference_Location

Nanjing

Type

conf

DOI

10.1109/ICOCN.2015.7203655

Filename

7203655