Metamaterial devices inherently bear absorption loss on account of the imaginary parts of the optical indices, degrading the performance in most applications such as super-resolution imaging, sensing, cloaking, etc. However, the absorption loss becomes advantageous for EM absorbers, and perfect absorption can be achieved by engineering the ...
The materials employ a periodic, cellular structure. The subwavelength periodicity distinguishes photonic metamaterials from photonic band gap or photonic crystal structures. The cells are on a scale that is magnitudes larger than the atom, yet much smaller than the radiated wavelength, are on the order of nanometers.
Accordingly, in view of their inherently lossless properties such photonic crystal metamaterials are highly attractive for these types of applications. The considerable challenge to be met is optimization of in-coupling efficiency. Surface texturing seems a promising avenue in this direction , .
The metamaterial is made of four layers on a silicon substrate. The first layer is palladium, covered by polyimide (plastic) and a palladium screen on top. The screen has sub-wavelength cutouts that block the various wavelengths. A polyimide layer caps the whole absorber.
However, despite their curious electromagnetic response, photonic crystals may not necessarily act as metamaterials, in the sense of possessing effective photonic properties. In this paper, the behavior of photonic crystals as metamaterials is reviewed. Two different classes of behaviors are identified.
Photonic metamaterial SRRs have reached scales below 100 nanometers, using electron beam and nanolithography. One nanoscale SRR cell has three small metallic rods that are physically connected. This is configured as a U shape and functions as a nano-inductor. The gap between the tips of the U-shape function as a nano-capacitor.
In a conventional material, the response to electric and magnetic fields, and hence to light, is determined by atoms. In metamaterials, cells take the role of atoms in a material that is homogeneous at scales larger than the cells, yielding an effective medium model.
Metamaterial devices inherently bear absorption loss on account of the imaginary parts of the optical indices, degrading the performance in most applications such as super-resolution imaging, sensing, cloaking, etc. However, the absorption loss becomes advantageous for EM absorbers, and perfect absorption can be achieved by engineering the ...
Get PricePlasmonics and metamaterials enable ptychographic coherent diffractive imaging with improved reconstructed phase and amplitude. The approach may be particularly …
Get PriceMetamaterials make it possible to achieve electromagnetic properties not existing in nature. The investigation focuses on the modeling, fabrication and testing of metamaterials at optical …
Get PriceMetamaterials make it possible to achieve electromagnetic properties not existing in nature. The investigation focuses on the modeling, fabrication and testing of metamaterials at optical frequencies. The main purpose of this research is to identify …
Get PriceHerein, we summarized recent advances in the metamaterial-based photodetectors according to a dual role of metamaterials: enrichment of photodetection …
Get PriceMetamaterial based photonic structure is used to disclose zero reflection. Simple nanoscale structure can replace current anti-reflecting layer which is used in solar cell. The result for reflectance is studied for all signals at visible regime.
Get PriceThe metamaterial technology has attracted much attention in many countries. It was listed as one of the six major disruptive technologies by the Department of Defense of the United States. In this paper, the development of metamaterial technology is briefly reviewed from the perspective of engineering application. A few major breakthroughs, such as invisible cloak, metamaterial …
Get PriceAn effective design of thermophotovoltaic metamaterial emitter for medium–temperature solar energy storage utilization. Sol. Energy, 231 (2022), pp. 194-202, 10.1016/j.solener.2021.11.067. View PDF View article View in Scopus Google Scholar [26] B. Chen, S. Shan, J. Liu. A novel molten salt energy storage–solar thermophotovoltaic integrated …
Get PriceEmploying well-established nanometer-scale semiconductor manufacturing techniques to create metamaterials in optical waveguides has allowed unprecedented control …
Get PriceMETA 2025, the 15th International Conference on Metamaterials, Photonic Crystals and Plasmonics will cover the entire scope of Nanophotonics and Complex Artificial Materials for Innovative Wave Phenomena.Particular emphasis will be placed on the applications of these innovative materials across various domains, including Information and Communication …
Get PriceDifferent types of MTM particles have been created and verified, some of which are listed in Figure 1b–h gure 1b shows an array of metallic wires, which reduces effective plasma frequency and helped to realize negative permittivity below UV for the first time. [] Figure 1c presents an improved form of the metallic wire, the I-shaped resonator, in which the wire is …
Get PriceStudies in these directions parallel those on metamaterials, which are expected to provide a simultaneous control of the dielectric permittivity and of the magnetic permeability. In …
Get PriceThis monograph is a detailed introduction to the nascent and ever-evolving fields of metamaterials and nanophotonics, with key techniques and applications needed for a comprehensive understanding...
Get PriceHerein, we summarized recent advances in the metamaterial-based photodetectors according to a dual role of metamaterials: enrichment of photodetection functionalities and enhancement of photodetection performance. To start with, we presented an overview of the relevant concept of metamaterials and explore their distinctive optical ...
Get PriceThey incorporated a metamaterial to enhance absorption and engineered the contact design to maximize carrier extraction. An ultrafast photodetector operating with such a wide bandwidth across a large spectral …
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Get PricePlasmonics and metamaterials enable ptychographic coherent diffractive imaging with improved reconstructed phase and amplitude. The approach may be particularly useful for imaging of extremely ...
Get PriceMetamaterial engineered waveguide structures are emerging as fundamental building blocks for integrated photonics. Here we present an overview of our recent advances in this field, …
Get PriceStudies in these directions parallel those on metamaterials, which are expected to provide a simultaneous control of the dielectric permittivity and of the magnetic permeability. In this article, we briefly review some important advances on photonic crystals and metamaterials, as these two topics received a particular attention ...
Get PriceHyperbolic metamaterials (HMMs) are engineered materials with a hyperbolic isofrequency surface, enabling a range of interesting phenomena and applications including negative refraction, enhanced sensing, and subdiffraction imaging, focusing, and waveguiding. Existing HMMs primarily work in the visible and infrared spectral range due to the inherent …
Get PriceThe Nineteenth International Congress on Artificial Materials for Novel Wave Phenomena – Metamaterials 2025, will comprise a 4-day Conference (1–4 September), and a 2-day Doctoral School (5-6 September).
Get PriceA photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz, infrared (IR) or visible wavelengths. [1] The materials employ a periodic, cellular structure.
Get PriceMetamaterial based photonic structure is used to disclose zero reflection. Simple nanoscale structure can replace current anti-reflecting layer which is used in solar cell. The …
Get PriceA photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz, infrared (IR) or …
Get PriceTo reach a high gain, Bouzouad et al in [13] have utilized a single and double Jerusalem cross-unit cell as a Near Zero-Index metamaterial which is mounted above the antenna patch as illustrated in Fig. 1 a. As shown in Fig. 1 b, a gain improvement of 5.1 dBi and 7 dBi for single and double layers, respectively, has been obtained when the NZI metamaterial …
Get PriceMetamaterial behavior of photonic crystals was reviewed and two different classes of different characteristics were identified and discussed. In the first class, structures with strict engineering at wavelengths comparable to the structural meta-atom can possess effective propagation properties without possessing effective refractive ...
Get PriceMetamaterial behavior of photonic crystals was reviewed and two different classes of different characteristics were identified and discussed. In the first class, structures …
Get PriceThis monograph is a detailed introduction to the nascent and ever-evolving fields of metamaterials and nanophotonics, with key techniques and applications needed for a comprehensive understanding...
Get PriceEmploying well-established nanometer-scale semiconductor manufacturing techniques to create metamaterials in optical waveguides has allowed unprecedented control of the flow of light in photonic chips. This is achieved through fine-tuning of fundamental optical properties such as modal confinement, effective index, dispersion, and ...
Get PriceMetamaterial engineered waveguide structures are emerging as fundamental building blocks for integrated photonics. Here we present an overview of our recent advances in this field, including fiber-chip couplers, ultra-broadband beam splitters, nanophotonic waveguides with engineered anisotropy and integrated Bragg filters.
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