Omnidirectional and polarization insensitive nearly perfect absorber in one dimensional meta-structure

2014 ◽  
Vol 105 (18) ◽  
pp. 181102 ◽  
Author(s):  
Rui Feng ◽  
Jun Qiu ◽  
Yongyin Cao ◽  
Linhua Liu ◽  
Weiqiang Ding ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
One Dimensional ◽  
Polarization Insensitive

scholarly journals Quad-Band Plasmonic Perfect Absorber for Visible Light with a Patchwork of Silicon Nanorod Resonators

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1954 ◽  
Author(s):  
Can Cao ◽  
Yongzhi Cheng
Keyword(s):  
Visible Light ◽  
Transverse Electric ◽  
Transverse Magnetic ◽  
Localized Surface Plasmon ◽  
Perfect Absorber ◽  
Absorption Properties ◽  
Perfect Absorption ◽  
Potential Applications ◽  
Polarization Insensitive ◽  
Band Absorption

In this paper, a plasmonic perfect absorber (PPA) based on a silicon nanorod resonator (SNRR) for visible light is proposed and investigated numerically. The proposed PPA is only a two-layer nanostructure consisting of a SNRR periodic array and metal substrate. The perfect absorption mainly originates from excitation of the localized surface plasmon resonance (LSPR) mode in the SNRR structure. The absorption properties of this design can be adjusted by varying the radius (r) and height (h) of the SNRR structure. What is more, the stronger quad-band absorption can be achieved by combing four different radius of the SNRR in one period as a super unit-cell. Numerical simulation indicates that the designed quad-band PPA can achieve the absorbance of 99.99%, 99.8%, 99.8%, and 92.2% at 433.5 THz, 456 THz, 482 THz, and 504.5 THz, respectively. Further simulations show that the proposed PPA is polarization-insensitive for both transverse electric (TE) and transverse magnetic (TM) modes. The proposed PPA can be a desirable candidate for some potential applications in detecting, sensing, and visible spectroscopy.

scholarly journals Flexible Broadband Metamaterial Perfect Absorber Based on Graphene-Conductive Inks

Photonics ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 440
Author(s):  
Le Van Long ◽  
Nguyen Sy Khiem ◽  
Bui Son Tung ◽  
Nguyen Thanh Tung ◽  
Trinh Thi Giang ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Optical Filters ◽  
Wide Frequency Range ◽  
Absorption Feature ◽  
Perfect Absorber ◽  
Frequency Range ◽  
Absorption Mechanism ◽  
Polarization Insensitive ◽  
Metamaterial Perfect Absorber ◽  
High Absorption

In this work, we proposed a flexible broadband metamaterial perfect absorber (FBMPA) by exploiting a pasted conductive-graphene ink on a polyimide substrate. For the flat FBMPA, an absorption over 90% was found to cover a wide frequency range (from 7.88 to 18.01 GHz). The high-absorption feature was polarization-insensitive and regarded as stable with respect to the oblique incidence up to 30 degrees of electromagnetic wave. The high absorption was maintained well even when the absorber was wrapped. That is, the FBMPA was attached to cylindrical surfaces (with the varying radius from 4 to 50 cm). For both flat and curved states, the absorption mechanism was explained by the perfect impedance matching and the dielectric loss of the proposed absorber. Our work provides the groundwork for the commercialization of future meta-devices such as sensors, optical filters/switchers, photodetectors, and energy converters.

Ultra-narrow multi-band polarization-insensitive plasmonic perfect absorber for sensing

2020 ◽  
Vol 31 (46) ◽  
pp. 465501 ◽  
Author(s):  
Leilei Shi ◽  
Jiangshan Shang ◽  
Zhengqi Liu ◽  
Yuyin Li ◽  
Guolan Fu ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
Polarization Insensitive ◽  
Multi Band

Wide-Angle and Polarization-Insensitive Perfect Absorber for Organic Photovoltaic Layers

2013 ◽  
Vol 25 (13) ◽  
pp. 1266-1269 ◽  
Author(s):  
Kai Liu ◽  
Haifeng Hu ◽  
Haomin Song ◽  
Xie Zeng ◽  
Dengxin Ji ◽  
...  
Keyword(s):  
Organic Photovoltaic ◽  
Perfect Absorber ◽  
Wide Angle ◽  
Polarization Insensitive

scholarly journals Polarization insensitive infrared absorbing behaviour of one-dimensional multilayer stack: a fractal approach

2014 ◽  
Vol 22 (S6) ◽  
pp. A1547 ◽  
Author(s):  
M. C. Larciprete ◽  
M. Centini ◽  
R. Li Voti ◽  
M. Bertolotti ◽  
C. Sibilia
Keyword(s):  
One Dimensional ◽  
Fractal Approach ◽  
Polarization Insensitive

Highly efficient, polarization insensitive terahertz metamaterial perfect absorber and imaging

2012 ◽  
Author(s):  
David. S. Wilbert ◽  
Mohammad P. Hokmabadi ◽  
William Baughman ◽  
Patrick Kung ◽  
Seongsin M. Kim
Keyword(s):  
Perfect Absorber ◽  
Highly Efficient ◽  
Polarization Insensitive ◽  
Metamaterial Perfect Absorber
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