Dual-band absorption enhancement of monolayer molybdenum disulfide by a tapered metamaterial waveguide slab

2020 ◽  
Vol 13 (6) ◽  
pp. 065001
Author(s):  
Honglong Qi ◽  
Tian Sang ◽  
Xin Yin ◽  
Xun Wang ◽  
Guoqing Li
Keyword(s):  
Molybdenum Disulfide ◽  
Dual Band ◽  
Absorption Enhancement ◽  
Metamaterial Waveguide ◽  
Band Absorption

scholarly journals Investigation on the Optical Dual-band Absorption Enhancement for Graphene Photodetector

2021 ◽  
pp. 104747
Author(s):  
Haixia Liu ◽  
Shashi Zhang ◽  
Hao Ding ◽  
Wei Sun ◽  
Lichen Sun
Keyword(s):  
Dual Band ◽  
Absorption Enhancement ◽  
Band Absorption

Multispectral Plasmon of Anisotropic Core-shell Gold Nanorods@SiO2: Dual-band Absorption Enhancement with Coupling Dye Molecules

2018 ◽  
Vol 34 (5) ◽  
pp. 772-780 ◽  
Author(s):  
Yuping Che ◽  
Yang Wang ◽  
Tingting You ◽  
Huaiqiu Chang ◽  
Penggang Yin ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Dual Band ◽  
Absorption Enhancement ◽  
Core Shell ◽  
Dye Molecules ◽  
Band Absorption

scholarly journals Dual-Band Light Absorption Enhancement in Hyperbolic Rectangular Array

2019 ◽  
Vol 9 (10) ◽  
pp. 2011 ◽  
Author(s):  
Honglong Qi ◽  
Tian Sang ◽  
La Wang ◽  
Xin Yin ◽  
Jicheng Wang ◽  
...  
Keyword(s):  
Light Absorption ◽  
Effective Medium Theory ◽  
Impedance Matching ◽  
Dual Band ◽  
Absorption Enhancement ◽  
Absorption Bands ◽  
Absorption Properties ◽  
Rectangular Array ◽  
Medium Theory ◽  
Band Absorption

The effect of dual-band light absorption enhancement in a hyperbolic rectangular array (HRA) is presented. The enhanced light absorption of the HRA results from the propagating surface plasmon (PSP) resonance, and a dual-band absorption with low and flat sideband level can be realized. The impedance theory is used to evaluate the absorption properties of the HRA, and shows that the input impedances of the HRA varied abruptly around the absorption bands to meet the impedance matching. The absorption spectra of the HRA can be estimated using the effective medium theory (EMT), and its accuracy can be improved as the number of film stacks is increased. The dual-band absorptions of the HRA are very robust to the variations of the width and the number of film stack. Potential application in refractive index sensing can be achieved by utilizing the two absorption bands.

scholarly journals Numerical Study of Angle-Insensitive and Tunable Dual-Band THz Absorber Using Periodic Cross-Shaped Graphene Arrays

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2063 ◽  
Author(s):  
Tian Sang ◽  
Jian Gao ◽  
La Wang ◽  
Honglong Qi ◽  
Xin Yin ◽  
...  
Keyword(s):  
Transverse Electric ◽  
Numerical Study ◽  
Transverse Magnetic ◽  
Dual Band ◽  
Absorption Enhancement ◽  
Cavity Model ◽  
Absorption Bands ◽  
Fabry Perot ◽  
Band Absorption ◽  
The Cross

A dual-band terahertz (THz) absorber using the periodic cross-shaped graphene arrays is presented. It is shown that the dual-band light absorption enhancement of graphene results from the edge graphene plasmon (EGP) resonance, and the locations of the two absorption peaks can be precisely estimated by using the Fabry-Pérot (F-P) cavity model. Slight residual reflection remains at the two absorption peaks because the input impedance of the cross-arm cannot be perfectly matched with the free space impedance. In addition, the locations of the two absorption bands can be simultaneously tuned by changing the Fermi level of graphene, and they can be independently tuned by changing the width or the length of the cross-arm of graphene. Excellent angle-insensitivity dual-band absorption enhancement of graphene can be maintained for both the transverse electric (TE) and transverse magnetic (TM) polarizations.

scholarly journals Enhanced dual-band absorption of molybdenum disulfide using a plasmonic perfect absorber

2018 ◽  
Vol 26 (9) ◽  
pp. 11658 ◽  
Author(s):  
Xin Luo ◽  
Xiang Zhai ◽  
Lingling Wang ◽  
Qi Lin
Keyword(s):  
Molybdenum Disulfide ◽  
Dual Band ◽  
Perfect Absorber ◽  
Band Absorption

Absorption enhancement of a dual-band metamaterial absorber

2017 ◽  
Vol 86 ◽  
pp. 158-163 ◽  
Author(s):  
Min Zhong ◽  
Gui Ming Han ◽  
Shui Jie Liu ◽  
Bang Li Xu ◽  
Jie Wang ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Absorption Enhancement

Detection of hogwash oil in Chinese soybean oils using dual-band absorption measurements

2013 ◽  
Author(s):  
A. G. Mignani ◽  
L. Ciaccheri ◽  
A. A. Mencaglia ◽  
J. Xing ◽  
X. Yang ◽  
...  
Keyword(s):  
Dual Band ◽  
Soybean Oils ◽  
Band Absorption ◽  
Absorption Measurements
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