scholarly journals Structured vanadium dioxide metamaterial for tunable broadband terahertz absorption

2021 ◽  
Vol 29 (26) ◽  
pp. 42989
Author(s):  
Ruoya Zhang ◽  
Yuehao Luo ◽  
Jike Xu ◽  
Huaying Wang ◽  
Haiyan Han ◽  
...  
Keyword(s):  
Vanadium Dioxide ◽  
Terahertz Absorption ◽  
Broadband Terahertz

Tunable broadband terahertz metamaterial absorber using multi-layer black phosphorus and vanadium dioxide

2020 ◽  
Vol 53 (14) ◽  
pp. 145105 ◽  
Author(s):  
Tongling Wang ◽  
Lizhi Qu ◽  
Lingfei Qu ◽  
Yuping Zhang ◽  
Huiyun Zhang ◽  
...  
Keyword(s):  
Vanadium Dioxide ◽  
Metamaterial Absorber ◽  
Black Phosphorus ◽  
Broadband Terahertz

scholarly journals Ultra-broadband terahertz absorption by exciting the orthogonal diffraction in dumbbell-shaped gratings

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
XiaoFei Zang ◽  
Cheng Shi ◽  
Lin Chen ◽  
Bin Cai ◽  
YiMing Zhu ◽  
...  
Keyword(s):  
Terahertz Absorption ◽  
Broadband Terahertz

scholarly journals A dynamically adjustable broadband terahertz absorber based on a vanadium dioxide hybrid metamaterial

2020 ◽  
Vol 19 ◽  
pp. 103384
Author(s):  
Yongchen Liu ◽  
Yixian Qian ◽  
Fangrong Hu ◽  
Mingzhu Jiang ◽  
Longhui Zhang
Keyword(s):  
Vanadium Dioxide ◽  
Terahertz Absorber ◽  
Hybrid Metamaterial ◽  
Broadband Terahertz

Broadband Terahertz Absorption in Graphene-Embedded Photonic Crystals

Plasmonics ◽  
2017 ◽  
Vol 13 (4) ◽  
pp. 1153-1158 ◽  
Author(s):  
Yuancheng Fan ◽  
Luqi Tu ◽  
Fuli Zhang ◽  
Quanhong Fu ◽  
Zhengren Zhang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Terahertz Absorption ◽  
Broadband Terahertz

scholarly journals Switchable broadband terahertz spatial modulators based on patterned graphene and vanadium dioxide

2020 ◽  
Vol 28 (23) ◽  
pp. 33948 ◽  
Author(s):  
Longfang Ye ◽  
Xueer Chen ◽  
Chunhui Zhu ◽  
Weiwen Li ◽  
Yong Zhang
Keyword(s):  
Vanadium Dioxide ◽  
Broadband Terahertz

Ultrafast and Broadband Terahertz Switching Based on Photo-Induced Phase Transition in Vanadium Dioxide Films

2013 ◽  
Vol 30 (1) ◽  
pp. 017102 ◽  
Author(s):  
Zhi Chen ◽  
Qi-Ye Wen ◽  
Kai Dong ◽  
Dan-Dan Sun ◽  
Dong-Hong Qiu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Vanadium Dioxide ◽  
Broadband Terahertz

scholarly journals Tunable Dual Broadband Terahertz Metamaterial Absorber Based on Vanadium Dioxide

2020 ◽  
Vol 10 (20) ◽  
pp. 7259 ◽  
Author(s):  
Xiao-Fei Jiao ◽  
Zi-Heng Zhang ◽  
Tong Li ◽  
Yun Xu ◽  
Guo-Feng Song
Keyword(s):  
Vanadium Dioxide ◽  
High Efficiency ◽  
Rapid Development ◽  
Normal Incidence ◽  
Bottom Layer ◽  
Metamaterial Absorber ◽  
Field Analysis ◽  
Research Trend ◽  
Polarization Angle ◽  
Broadband Terahertz

With the rapid development of terahertz technology, tunable high-efficiency broadband functional devices have become a research trend. In this research, a dynamically tunable dual broadband terahertz absorber based on the metamaterial structure of vanadium dioxide (VO2) is proposed and analyzed. The metamaterial is composed of patterned VO2 on the top layer, gold on the bottom layer and silicon dioxide (SiO2) as the middle dielectric layer. Simulation results show that two bandwidths of 90% absorption reach as wide as 2.32 THz from 1.87 to 4.19 THz and 2.03 THz from 8.70 to 10.73 THz under normal incidence. By changing the conductivity of VO2, the absorptance dynamically tuned from 2% to 94%. Moreover, it is verified that absorptance is insensitive to the polarization angle. The physical origin of this absorber is revealed through interference theory and matching impedance theory. We further investigate the physical mechanism of dual broadband absorption through electric field analysis. This design has potential applications in imaging, modulation and stealth technology.

Sign in / Sign up

Export Citation Format

Share Document