Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8961722 | Physics Letters A | 2018 | 5 Pages |
Abstract
A novel band-stop filter, which uses the piezoelectric superlattices with the external direct-current (DC) electric fields, is presented. The forbidden band of the band-stop filter can be generated by the coupling between lattice vibration and electromagnetic waves and can be tuned continuously and reversibly by the DC electric field via the electro-optic effect. The band structures and transmission spectra of the band-stop filter show that the relative bandwidth of forbidden bands will be increased from 0.43% to 26.2% and their sizes can be broadened from 0.043 GHz to 2.98 GHz when the DC electric field is increased from 0 to 1.343Ã106 V/m. The bandwidth tunability by the electro-optic effect provides a good guidance for the filter design that works in broadband frequencies.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Zheng-Hua Tang, Zheng-Sheng Jiang, Tao Chen, Da-Jun Lei, Jian-Quan Huang, Feng Qiu, Chun-Zhi Jiang, Min Yao, Xiao-Yi Huang,