Ultra-light planar meta-absorber with wideband and full-polarization properties

Du, Zhiqiang; Liang, Jian‐Gang; Cai, Tong; Wang, Xin; Zhang, Qingdong; Deng, Taowu; Wu, Borui; Mao, Ruiqi; Wang, Dengpan

doi:10.1364/oe.416245

Cited by 37 publications

(10 citation statements)

References 46 publications

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“…As the incident angle increases, the absorption peak shifts towards higher frequencies. The reasons for this phenomenon are attributes to the fact that the equivalent impedance of TE and TM mode varies with the incident angles, which can be explained by the following equation [34]:…”

Section: The Performance Of Polarization Insensitive and Wide Inciden...mentioning

confidence: 99%

An optically transparent flexible metasurface absorber with broadband radar absorption and low infrared emissivity

Jing¹,

Wei²,

Kang³

et al. 2023

J. Phys. D: Appl. Phys.

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The rapid development of surveillance technology has driven the research of multispectral stealth. Demand for infrared and microwave radar compatible stealth is becoming increasingly urgent in military applications. Herein, a versatile metamaterial absorber is designed and fabricated to simultaneously achieve ultra-broadband radar scattering reduction, low infrared emission, and high optical transparency. The designed structure consists of an infrared stealth layer, radar absorption layers, and backing ground. The infrared stealth layer employs specifically indium tin oxide (ITO) square patches, while the radar absorption layers can be obtained by stacking different size ITO patterned films of the same structure with high surface resistances, realizing broadband microwave stealth performance in the 1.98 to 18.6 GHz frequency range with an incident angle of 45º. The broad radar stealth and low infrared emissivity of 0.283 are consistent with the simulations and calculations. Furthermore, the designed structure exhibits characteristics such as polarization insensitivity, wide incident angles, optical transparency, and flexibility, allowing for a wide range of applications in various environments.

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Section: The Performance Of Polarization Insensitive and Wide Inciden...mentioning

confidence: 99%

An optically transparent flexible metasurface absorber with broadband radar absorption and low infrared emissivity

Jing¹,

Wei²,

Kang³

et al. 2023

J. Phys. D: Appl. Phys.

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“…[11] Shui et al reported a flexible and thin Ti 3 C 2 T X sponge composite absorber working at 0.3 THz-1.65 THz with absorption over 90% and with a thickness of about 2 mm. [12] The above literature suggested that both materials and structures can be explored to improve the absorption performance, [13][14][15][16][17][18] and thus the absorption bandwidth can be expanded with relatively minimal thickness.…”

Section: Introductionmentioning

confidence: 99%

A flexible ultra-broadband multi-layered absorber working at 2 GHz–40 GHz printed by resistive ink

et al. 2024

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A flexible extra broadband metamaterial absorber (MMA) stacked by five layers working at 2-40 GHz is provided, while each layer is composed of polyvinyl chloride (PVC), polyimide (PI), and frequency selective surface (FSS) which is printed on PI using conductive ink. To investigate this absorber, both one-dimensional analogous circuit analysis and three-dimensional full-wave simulation based on physical model is provided. Some crucial electromagnetic properties, such as absorption, effective impedance, complex permittivity and permeability, electric current distribution and magnetic field distribution at resonant peak points are studied in detail. Analysis shows that working frequency of this absorber covers entire S, C, X, Ku, K and Ka bands with the minimum thickness of 0.098 λ max (the maximum wavelength in absorption band), and fractional bandwidth (FBW) reaches 181.1%. Moreover, reflection coefficient less than -10 dB at 1.998-40.056 GHz at normal incidence, and absorptivity of plane wave is more than 80% when incident angle less than 50°. Furthermore, the proposed absorber is experimental validated, and the experimental results shows good agreement with the simulation results, which demonstrates potential applicability of this absorber at 2-40 GHz.

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“…One area where this technology shows particular promise is the development of tunable, multiband, and broadband metamaterial-based absorbers for use in the infrared (IR) wavelength range. These absorbers are essential for applications in spectroscopy, thermal emission, cloaking, and sensor technologies. − Various designs have been proposed to achieve multiband absorption, including the vertical stacking of subwavelength metal structures, combining resonators of different sizes or shapes, and using grating-based Fabry–Perot (FP) structures …”

Section: Introductionmentioning

confidence: 99%

Microheater-Integrated Spectrally Selective Multiband Mid-Infrared Nanoemitter for On-Chip Optical Multigas Sensing

Rahimian Omam,

Ghobadi,

Khalichi

et al. 2023

ACS Appl. Nano Mater.

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Traditional optical gas sensors often require multiple components such as broadband infrared sources, detectors, and band-pass filters to detect various target gases, resulting in bulky and expensive sensor designs. A streamlined optical gas-sensing platform utilizing a narrowband thermal emitter with a spectrally selective response, capable of accommodating various target gases, has the potential to supplant current bulky designs. Through the on-chip integration of a narrowband metamaterial perfect absorber with a microelectromechanical system (MEMS) heater, a selective infrared source emitter could be designed. In this paper, a multiband metamaterial absorber with resonance modes located at different gas absorption signatures is developed for optical multi-gas-sensing applications. The proposed nanoemitter supports penta-band light absorption through the simultaneous excitation of phononic modes (within the hexagonal boron nitride (hBN) topmost layer) and plasmonic modes (with the spectrally selective underlying metal−insulator−metal (MIM) absorber stack). It achieves five near-perfect sharp absorption resonance peaks compatible with the H 2 S, CH 4 , CO 2 , NO, and SO 2 gas absorption signatures in the mid-infrared (MIR) spectral range. This spectrally engineered multiwavelength absorption behavior is achieved by simultaneously coupling the optical phonons (OPhs) and the plasmonic modes in the vicinity of the OPh region of hBN and by exciting plasmonic modes with the help of the spacer (ZnTe: zinc telluride) and the metallic nanogratings. Finally, this low-cost and efficient penta-band absorber is combined with a MEMSbased microheater. The microheater uses a Peano-shaped configuration to provide a highly uniform surface temperature, which is crucial for accurate and reliable gas sensing. The proposed platform demonstrates excellent potential in terms of cost-effectiveness, source-free operation, and suitability for multi-gas-sensing platforms.

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Ultra-light planar meta-absorber with wideband and full-polarization properties

Cited by 37 publications

References 46 publications

An optically transparent flexible metasurface absorber with broadband radar absorption and low infrared emissivity

An optically transparent flexible metasurface absorber with broadband radar absorption and low infrared emissivity

A flexible ultra-broadband multi-layered absorber working at 2 GHz–40 GHz printed by resistive ink

Microheater-Integrated Spectrally Selective Multiband Mid-Infrared Nanoemitter for On-Chip Optical Multigas Sensing

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