The Study of Midinfrared Extremely Narrow Dual-Band Absorber Based on a Novel Metamaterial Structure

Due to the problems that the metal pattern layer on the top of the traditional metamaterial structure is easy to be oxidized and easy to fall off, in this paper, a novel semiconductor metamaterial nanostructure composed of a periodic array of GaAs-SiO2 cubes and a gold (Au) film has been proposed. Using FDTD solutions software to prove this metamaterial structure can achieve ultranarrow dual-band, nearly perfect absorption with a maximum absorbance of 99% and a full-width at half-maximum (FWHM) value that is less than 20 nm in the midinfrared region. The refractive index sensitivity is demonstrated by changing the background index and analyzing the absorption performance. It had been proved that this absorber has high sensitivity (2000/RIU and 1300/RIU). Using semiconductor material instead of the metal material of the top pattern layer can effectively inhibit the performance failure of the metamaterial structure caused by metal oxidation. The proposed narrow, dual-band metamaterial absorber shows promising prospects in applications such as infrared detection and imaging.

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Mid-wave and long-wave infrared dual-band stacked metamaterial absorber for broadband with high refractive index sensitivity

Applied Optics ◽

10.1364/ao.384027 ◽

2020 ◽

Vol 59 (9) ◽

pp. 2695 ◽

Cited By ~ 1

Author(s):

Enzhu Hou ◽

Dejia Meng ◽

Zhongzhu Liang ◽

Ying Xiong ◽

Fuming Yang ◽

...

Keyword(s):

Refractive Index ◽

High Refractive Index ◽

Metamaterial Absorber ◽

Dual Band ◽

Refractive Index Sensitivity ◽

Long Wave ◽

Index Sensitivity ◽

Long Wave Infrared

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Hybrid Metamaterials Perfect Absorber and Sensitive Sensor in Optical Communication Band

Frontiers in Physics ◽

10.3389/fphy.2021.637602 ◽

2021 ◽

Vol 9 ◽

Author(s):

Xuehan Liu ◽

Keyang Li ◽

Zhao Meng ◽

Zhun Zhang ◽

Zhongchao Wei

Keyword(s):

Optical Communication ◽

Electromagnetic Waves ◽

Incident Angle ◽

Silicon Layer ◽

Resonance Wavelength ◽

Metamaterial Absorber ◽

Absorption Peak ◽

Dual Band ◽

Perfect Absorber ◽

Perfect Absorption

A subwavelength metamaterial perfect absorber (MPA) in optical communication band was proposed and tested using the finite-difference time-domain method. The absorber is periodic and comprises a top layer of diamond silicon surrounded by L-shaped silicon and a gold layer on the substrate. It can achieve dual-band perfect absorption, and one of the peaks is in the optical communication band. By changing the gap (g) between two adjacent pieces of L-shaped silicon, and the thickness (h) of the silicon layer, the resonance wavelength of absorption peak can be tuned. When the incident electromagnetic wave entered the absorber, the metamaterial absorber could almost completely consume the incident electromagnetic waves, thereby achieving more than 99% perfect absorption. The absorption peak reaches 99.986% at 1310 nm and 99.421% at 1550 nm. Moreover, the MPA exposed to different ambient refraction indexes can be applied as plasma sensors, and can achieve multi-channel absorption with high figure of merit (FOM*) value and refractive index (RI) sensitivity. The FOM* values at 1310 nm and 1550 nm are 6615 and 168, respectively, and both resonance peaks have highly RI sensitivity. The results confirm that the MPA is a dual-band, polarization-independent, wide-angle absorber and insensitive to incident angle. Thence it can be applied in the fields of optical communication, used as a light-wave filter and plasma sensor, and so on.

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Strong absorption of solar energy by using wide band metamaterial absorber designed with plus-shaped resonators

International Journal of Modern Physics B ◽

10.1142/s0217979218502752 ◽

2018 ◽

Vol 32 (25) ◽

pp. 1850275 ◽

Cited By ~ 12

Author(s):

Emin Ünal ◽

Mehmet Bağmancı ◽

Muharrem Karaaslan ◽

Oguzhan Akgol ◽

Cumali Sabah

Keyword(s):

Frequency Band ◽

Metal Layer ◽

Wide Band ◽

Metamaterial Absorber ◽

Dual Band ◽

Polarization Angle ◽

Perfect Absorption ◽

Tem Mode ◽

Potential Applications ◽

Absorption Level

A new metamaterial absorber (MA) having distinct properties than those given in the literature is investigated. Although several designs have been studied for achieving absorption characteristics in single-band, dual-band and multiple bands within the whole spectrum of solar light, there has been limited number of researches examining the broadband MA in the visible light section of the spectrum. The designed structure is composed of the combination of three layers having different thicknesses including a metallic substrate, dielectric and a metal layer. Due to the sandwich-like structure, it can support the plasmonic resonance. The proposed structure, which provides a maximum absorption level of 99.42% at 579.26 THz, has a high absorption rate of 99% between the frequency band 545 and 628 THz. Numerical results indicate that the proposed structure has perfect absorption which is greater than 90.98% through the whole working frequency band. The dependency of the designed structure on the polarization angle is investigated for different incident angles with TE and TM polarizations as well as the TEM mode. In addition to its potential applications such as solar cells and cloaking, the designed structure can also be considered as a color sensor and an optical frequency sensor.

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Two-layered Dual-band Perfect Metamaterial Absorber at K band Frequency

Advanced Electromagnetics ◽

10.7716/aem.v7i2.547 ◽

2018 ◽

Vol 7 (2) ◽

pp. 25-27

Author(s):

M. C. Tran ◽

T. T. H. Phuong

Keyword(s):

Metamaterial Absorber ◽

Dual Band ◽

Material Structure ◽

Perfect Absorption ◽

Band Frequency ◽

Absorption Frequency ◽

Dielectric Layers ◽

Absorber Structure ◽

Perfect Metamaterial Absorber ◽

K Band

This paper presents a study of a novel absorber structure based on two-dielectric-layers, two perfect absorption frequency bands at K band (f1 = 26.5 GHz and f2 = 28.6 GHz) go under observance. The study of the dependence of absorption and frequency on relative distance between the layers of material and the material structure parameters are discussed.

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Scanning Surface Plasmon Microscope for Sensing Lipid Array and Au Film Defect

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.870.21 ◽

2017 ◽

Vol 870 ◽

pp. 21-26

Author(s):

Shih Chung Wei ◽

Pei Tung Yang ◽

Frank X. Gu ◽

Kung Bin Sung ◽

Chii Wann Lin

Keyword(s):

Surface Plasmon ◽

Focal Point ◽

High Sensitivity ◽

High Refractive Index ◽

Refractive Index Sensitivity ◽

Au Film ◽

Array Structures ◽

Polarized Surface ◽

Index Sensitivity ◽

Surface Plasmon Microscopy

We demonstrated a scanning radially-polarized surface plasmon microscopy (SSPM) with submicron lateral resolution and high refractive index sensitivity. According to the captured images, SSPM could be used to verify the quality of deposited Au film and Au structure on surface plasmon sensing chip. The defect on the SPR chip, which disturbed the plasmonic wave around the focal point, could be easily detected by our system. Moreover, the application of SSPM in imaging lipid array was showed in this article. The 1, 2-Dioleoyl-sn-glycero-3-phosphocholine (DOPC) array was made by dip-pen nanolithography. The results indicated that SSPM system could be used in comparing the thickness of DOPC array. Because of the high sensitivity and high spatial resolution of the system, we expected the SSPM to be used in measuring the properties of nanogold array structures and apply to digital-array biosensors in nanoscale.

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Ultranarrow dual-band metamaterial perfect absorber and its sensing application

Journal of Optics ◽

10.1088/2040-8986/ac4aba ◽

2022 ◽

Author(s):

Wenhan Zhao ◽

Junqiao Wang ◽

Ran Li ◽

Bin Zhang

Keyword(s):

Metamaterial Absorber ◽

Plasmon Mode ◽

Ring Resonators ◽

Dual Band ◽

Storage Device ◽

Field Pattern ◽

Perfect Absorber ◽

Cell Coupling ◽

Concentric Ring ◽

Perfect Absorption

Abstract In this paper, a dual-band metamaterial absorber (MMA) with wide-angle and high absorptivity is proposed. The MMA consists of two silver layers separated by a dielectric layer. Its top resonant element is constituted by two concentric ring resonators connected with four strips. Based on electromagnetic field simulation, the proposed MMA has two narrow absorption peaks with an absorption rate of 99.9% at 711 nm and 99.8% at 830 nm, and the corresponding line width of the two absorption peaks are only 9.7 nm and 9.8 nm. The dual-band MMA shows high absorptivity under wide incident angles. The simulated field pattern shows that dual-band perfect absorption is the combined result of the interaction of two concentric ring resonators and unit cell coupling. In addition, the hexapole plasmon mode can be observed at the outer ring at one absorption peak. The narrow plasmon resonance has a potential application in optical sensing, and can be used to measure the concentration of aqueous glucose with two frequency channels. The proposed MMA with high absorptivity is simple to manufacture, and has other potential applications, such as narrow-band filters, energy storage device, and so on.

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Dual-Band Perfect Metamaterial Absorber Based on an Asymmetric H-Shaped Structure for Terahertz Waves

Materials ◽

10.3390/ma11112193 ◽

2018 ◽

Vol 11 (11) ◽

pp. 2193 ◽

Cited By ~ 6

Author(s):

Taiguo Lu ◽

Dawei Zhang ◽

Peizhen Qiu ◽

Jiqing Lian ◽

Ming Jing ◽

...

Keyword(s):

Metamaterial Absorber ◽

Dual Band ◽

Interference Theory ◽

Metamaterial Structure ◽

Terahertz Waves ◽

Potential Applications ◽

Band Absorption ◽

Perfect Metamaterial Absorber ◽

Simulation Results ◽

Absorption Frequencies

We designed an ultra-thin dual-band metamaterial absorber by adjusting the side strips’ length of an H-shaped unit cell in the opposite direction to break the structural symmetry. The dual absorption peaks approximately 99.95% and 99.91% near the central resonance frequency of 4.72 THz and 5.0 THz were obtained, respectively. Meanwhile, a plasmon-induced transmission (PIT) like reflection window appears between the two absorption frequencies. In addition to theoretical explanations qualitatively, a multi-reflection interference theory is also investigated to prove the simulation results quantitatively. This work provides a way to obtain perfect dual-band absorption through an asymmetric metamaterial structure, and it may achieve potential applications in a variety of fields including filters, sensors, and some other functional metamaterial devices.

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A Tunable “Ancient Coin”-Type Perfect Absorber with High Refractive Index Sensitivity and Good Angular Polarization Tolerance

Coatings ◽

10.3390/coatings11070814 ◽

2021 ◽

Vol 11 (7) ◽

pp. 814

Author(s):

Hao Luo ◽

Qianyi Shangguan ◽

Yinting Yi ◽

Shubo Cheng ◽

Yougen Yi ◽

...

Keyword(s):

Refractive Index ◽

Graphene Layer ◽

High Refractive Index ◽

Dual Band ◽

Polarization Angle ◽

Perfect Absorber ◽

Refractive Index Sensitivity ◽

Absorption Performance ◽

Ancient Coin ◽

Index Sensitivity

In this paper, we design and present a graphene-based “ancient coin”-type dual-band perfect metamaterial absorber, which is composed of a silver layer, silicon dioxide layer, and a top “ancient coin” graphene layer. The absorption performance of the absorber is affected by the hollowed-out square in the center of the graphene layer and geometric parameters of the remaining nano disk. The optical properties of graphene can be changed by adjusting the voltage, to control the absorption performance of the absorber dynamically. In addition, the centrally symmetric pattern structure greatly eliminates the polarization angle dependence of our proposed absorber, and it exhibits good angular polarization tolerance. Furthermore, the proposed “ancient coin”-type absorber shows great application potential as a sensor or detector in biopharmaceutical, optical imaging, and other fields due to its strong tunability and high refractive index sensitivity.

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