An ultrabroad terahertz bandpass filter based on multiple-resonance excitation of a composite metamaterial

Yi Ju Chiang, Chan Shan Yang, Yu Hang Yang, Ci Ling Pan, Ta Jen Yen*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

82 引文 斯高帕斯(Scopus)

摘要

We experimentally present an ultrabroad terahertz (THz) bandpass filter based on a composite metamaterial (CMM) by exciting its multiple resonances. This metamaterial-based filter, consisting of a metal-dielectric-metal sandwiched structure, possesses a notable spectral-filtering capability with a 0.5-THz-broad bandwidth and excellent band-edge transitions of 140% THz and 182% THz in the THz-gap region. Furthermore, we manifest the mechanism for each of the resonances and the coupling within the composite metamaterial. This realization enables the capacity for engineering the electromagnetic properties to develop other complex optical functionalities. An example of a high-profile dualband THz bandpass filter is also proposed theoretically in this work.

原文英語
文章編號191909
期刊Applied Physics Letters
99
發行號19
DOIs
出版狀態已發佈 - 2011 11月 7
對外發佈

ASJC Scopus subject areas

  • 物理與天文學(雜項)

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