Experimental demonstration of an electrically tunable broadband coherent perfect absorber based on a graphene–electrolyte–graphene sandwich structure

2019 ◽  
Vol 7 (8) ◽  
pp. 868 ◽  
Author(s):  
Jin Zhang ◽  
Xingzhan Wei ◽  
Malin Premaratne ◽  
Weiren Zhu
Keyword(s):  
Sandwich Structure ◽  
Perfect Absorber ◽  
Experimental Demonstration ◽  
Coherent Perfect Absorber

scholarly journals Enhanced acoustic pressure sensors based on coherent perfect absorber-laser effect

2021 ◽  
Vol 129 (10) ◽  
pp. 104902
Author(s):  
Mohamed Farhat ◽  
Waqas W. Ahmad ◽  
Abdelkrim Khelif ◽  
Khaled N. Salama ◽  
Ying Wu
Keyword(s):  
Acoustic Pressure ◽  
Pressure Sensors ◽  
Perfect Absorber ◽  
Laser Effect ◽  
Coherent Perfect Absorber

scholarly journals Coherent Perfect Absorber Based on Antisymmetric Metasurface With Gain Material

2020 ◽  
Vol 12 (3) ◽  
pp. 1-9 ◽  
Author(s):  
Ming Chen ◽  
Chen Chen ◽  
Shijie Deng ◽  
Chongyun Wang ◽  
Houquan Liu ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
Gain Material ◽  
Coherent Perfect Absorber

scholarly journals MoS$_2$ Broadband Coherent Perfect Absorber for Terahertz Waves

2016 ◽  
Vol 8 (6) ◽  
pp. 1-7 ◽  
Author(s):  
Weiren Zhu ◽  
Fajun Xiao ◽  
Ming Kang ◽  
Debabrata Sikdar ◽  
Xianling Liang ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
Terahertz Waves ◽  
Coherent Perfect Absorber

scholarly journals A Triple-Band Hybridization Coherent Perfect Absorber Based on Graphene Metamaterial

2020 ◽  
Vol 10 (5) ◽  
pp. 1750 ◽  
Author(s):  
Xinpeng Jiang ◽  
Zhaojian Zhang ◽  
Kui Wen ◽  
Guofeng Li ◽  
Jie He ◽  
...  
Keyword(s):  
Fermi Level ◽  
Absorption Peak ◽  
Perfect Absorber ◽  
Perfect Absorption ◽  
Coherent Perfect Absorption ◽  
Perfect Symmetry ◽  
Symmetry Structure ◽  
Metallic Mirror ◽  
Triple Band ◽  
Coherent Perfect Absorber

In this paper, a triple-band hybridization coherent perfect absorber based on graphene metamaterial is proposed, which consists of graphene concentric nanorings with different sizes and a metallic mirror separated by SiO2 layer. Based on the finite-difference time-domain (FDTD) solution, triple-band coherent perfect absorption is achieved at frequencies from 0.6 THz to 1.8 THz, which results from the surface plasmon resonance hybridization. The wavelength of the absorption peak can be rapidly changed by varying the Fermi level of graphene. Most importantly, the wavelength of the absorption peak can be independently tuned by varying the Fermi level of the single graphene nanoring. Moreover, the triple hybridization perfect absorber is angle-insensitive because of the perfect symmetry structure of the graphene nanorings. Therefore, our results may widely inspire optoelectronic and micro-nano applications, such as cloaking, tunable sensor, etc.

scholarly journals Ultrathin multi-band coherent perfect absorber in graphene with high-contrast gratings

2020 ◽  
Vol 28 (16) ◽  
pp. 24285 ◽  
Author(s):  
Haiyu Meng ◽  
Qi Lin ◽  
Xiongxiong Xue ◽  
Jichun Lian ◽  
Guidong Liu ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
High Contrast ◽  
Coherent Perfect Absorber ◽  
Multi Band
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