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Journal ArticleDOI

Hyperbolic Metamaterial-Based UV Absorber

TLDR
In this paper, the spectral properties of a nanostructured hyperbolic metamaterial (HMM)-based absorber are investigated and the effect of altering the slant angle and thickness of gold nanostrips in the HMM structure is reported.
Abstract
The spectral characteristics of nanostructured hyperbolic metamaterial (HMM)-based absorber is investigated. The HMM structure is comprised of periodically arranged assembly of gold nanostrips. The results indicate nearly perfect absorption by the structure in the entire ultraviolet (UV) regime of the electromagnetic spectrum under certain configuration – the feature which would be useful for UV-shield related applications. The absorptivity of the structure can be tailored by altering the slant angle and thickness of gold nanostrips (in the HMM structure). The effect of altering the incidence angle of light is also reported.

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Citations
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Ultra-broadband and wide-angle perfect solar absorber based on TiN nanodisk and Ti thin film structure

TL;DR: In this article, the authors designed an efficient, ultra-broadband perfect solar absorber to have as long absorption bands in this range as possible to help alleviate the energy problem and showed that the absorption bandwidth with absorption greater than 90% is greater than 2100nm.
Journal ArticleDOI

Supersensitive and Tunable Nano-Biosensor for Cancer Detection

TL;DR: In this paper, a simple, highly sensitive, and compact footprint biosensor for cancer detection based on metamaterial containing structure utilizing theoretical model is presented, which includes array of split ring resonators on a dielectric substrate.
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Refractory Ultra-Broadband Perfect Absorber from Visible to Near-Infrared.

TL;DR: Because of the high melting point of Ti material and the symmetrical structure of this device, this perfect absorber has excellent thermal stability, polarization independence, and large incident-angle insensitivity and can be used for solar cells, thermal emitters, and infrared detection with further investigation.
Journal ArticleDOI

Elliptical metallic rings-shaped fractal metamaterial absorber in the visible regime

TL;DR: Significant amount of absorption in the entire visible span, wide-angle stability, and utilization of low-cost metal make the proposed absorber suitable in varieties of photonics applications, in particular photovoltaics, thermal emitters and sensors.
References
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Journal ArticleDOI

Negative Refraction Makes a Perfect Lens

TL;DR: The authors' simulations show that a version of the lens operating at the frequency of visible light can be realized in the form of a thin slab of silver, which resolves objects only a few nanometers across.
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Composite Medium with Simultaneously Negative Permeability and Permittivity

TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
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Optical properties of metallic films for vertical-cavity optoelectronic devices.

TL;DR: The reflectance and the phase change on reflection from semiconductor-metal interfaces (including the case of metallic multilayers) can be accurately described by use of the proposed models for the optical functions of metallic films and the matrix method for multilayer calculations.
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Optical negative-index metamaterials

TL;DR: In this paper, a review describes the recent progress made in creating nanostructured metamaterials with a negative index at optical wavelengths, and discusses some of the devices that could result from these new materials.
Journal ArticleDOI

Broadband polarization-independent resonant light absorption using ultrathin plasmonic super absorbers

TL;DR: An ultrathin (260 nm) plasmonic super absorber consisting of a metal-insulator-metal stack with a nanostructured top silver film composed of crossed trapezoidal arrays yields broadband and polarization-independent resonant light absorption over the entire visible spectrum.
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