کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7930085 | 1512581 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrathin dual-mode filtering characteristics of terahertz metamaterials with electrically unconnected and connected U-shaped resonators array
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We experimentally and numerically demonstrate dual-mode resonances of electrically unconnected and connected U-shaped resonators array on flexible polyimide substrate in terahertz (THz) region. The unit cell consisting of two back-to-back U-shaped resonators (TUR) shows strong induction-capacitance resonance for TM mode and dipole resonance for TE mode. Then we clarify the transmission spectra characteristics of fourfold U-shaped resonators (FURs), which are composed of two twisted TUR at 90°. Distinct characteristic transmission responses are observed in varied coupled distances, specially, an “L-shaped” resonance is observed at connected FUR which does not exist in unconnected FUR. The polarization tunable property of TUR and polarization-independent characteristics of FUR are adequately clarified. Some applications such as polarization-tunable modulator (peak-to-peak value is about 0.4 for 90° polarization rotation) and polarization-independent dual-channel filter (full width with half maximum (FWHMs) nears to 85 GHz) is proposed and verified experimentally, which may benefit to broaden novel ultrathin flexible THz devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 342, 1 May 2015, Pages 20-25
Journal: Optics Communications - Volume 342, 1 May 2015, Pages 20-25
نویسندگان
Zhaoxiang Cheng, Lin Chen, Xiaofei Zang, Bin Cai, Yan Peng, Yiming Zhu,