Investigation of electromagnetic properties of a high absorptive, weakly reflective metamaterial—substrate system with compensated chirality

Semchenko, I. V.; Khakhomov, Sergei; Asadchy, Viktar; Golod, S. V.; Naumova, E. V.; Prinz, V. Ya.; Гончаренко, А. М.; Синицын, Г. В.; Lyakhnovich, A. V.; Malevich, V. L.

doi:10.1063/1.4973679

Cited by 15 publications

(6 citation statements)

References 63 publications

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“…For instance, by arranging orthogonal helices in staggered order or in the form of mutually perpendicular rows, one can create, by analogy with structures based on microhelices prepared from thin strained films, bi‐anisotropic chiral metasurfaces . Chirality‐compensated helices Figure S1c (Supporting Information) can be used in the development of absorbing nonreflective coatings and broad‐band polarizers . Interesting properties are also demonstrated by closed toroidal helices, Figure S1d (Supporting Information).…”

Section: Design Of Metasurfacementioning

confidence: 99%

Large‐Area 3D‐Printed Chiral Metasurface Composed of Metal Helices

Golod

Seyfi

Buldygin

et al. 2018

Advanced Optical Materials

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of semiconductor technology, such as consecutive lithographic steps with layers alignment, and the deposition and chemical etching of materials, are used. Besides, for preventing the capillary sticking of 3D microstructures and nanostructures, special treatments of surfaces and the supercritical drying technique are used after liquid-etching and resistdevelopment steps. [15,16] In ref.[17], a method was proposed for fabrication of microhelices and nanohelices from elastically strained thin semiconductor strips detached, with the help of selective etching of a sacrificial layer, from the substrate and then rolled in classically shaped 3D helices. The latter approach, combined with supercritical drying, [16] was successively employed for forming, on a GaAs substrate, a chiral metamaterial in the form of a single-layer array of 14.5 µm diameter 3D microhelices fabricated from a strained hybrid semiconductor-metal (In 0.2 Ga 0.8 As/GaAs/Ti/Au) films. [18,19] It was shown that the maximum polarization-plane rotation angle for terahertz radiation having passed the heliceson-substrate system reached 17° at 2.1 THz frequency. A close value for the polarization-plane rotation angle of terahertz radiation, 14°, was also obtained using a structure that involved 3D metal gammadion-shaped elements located directly on the surface of pyramidal trenches etched in a silicon substrate. [20] Experimental data obtained for both chiral metamaterials proved a high effectiveness of the interaction of electromagnetic radiation with the 3D conducting microresonators, thus encouraging the workers to spent further efforts on the search for simpler and cheaper technological solutions.Today, rapid progress in the development of additive technologies [21,22] opens up wide opportunities in the field of 3D chiral resonator elements, 3D metamaterials, and photonic crystals. [23][24][25] A number of sequential 3D printing methods have enabled the point-by-point formation of free-standing conducting helices for chiral metamaterials active in a broad range of radiation wavelengths, from microwave (MW) to optical frequencies. Those methods can be classed to several groups. First, these are methods including the electrochemical and chemical deposition of metals onto the surface of printed 3D polymer structures: i) filling of helically shaped channels with a metal [9,26] and ii) covering of free-standing 3D helical microcarcasses with a metal. [27] Second, this is the growth of An original design for chiral metasurfaces formation is proposed. The hybrid fabrication approach is based on the 3D printing of polymer substrates with a shape-generating "helical" relief, molding, and subsequent shadow metal deposition. The formed double-layer grating of multiturn metal helices rotates the polarization plane of sub-terahertz and microwave radiation through an angle in excess of 40°. Both experimentally and in numerical simulations, it is demonstrated that re-reflection phenomena occur in the "metal helixpolymer substrate" hybrid structure. Those phenomena per...

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Section: Design Of Metasurfacementioning

confidence: 99%

Large‐Area 3D‐Printed Chiral Metasurface Composed of Metal Helices

Golod

Seyfi

Buldygin

et al. 2018

Advanced Optical Materials

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“…Fortunately, modern innovative technologies give amazing opportunities for production of true 3D chiral metamaterials, 26,27 and complex metamaterial systems with compensated chirality. 28 In particular, 3D-printing techniques allow producing structures with a complex spatial topology implementing meta-devices with a new functionality. 29 It opens a prospects for rapid prototyping and final production of numerous diverse types of devices for the manipulation of light.…”

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confidence: 99%

3D-printed chiral metasurface as a dichroic dual-band polarization converter

Wu¹,

Xu²,

Zinenko³

et al. 2019

Opt. Lett.

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We propose a novel design of a true 3D chiral metasurface behaving as a spatial polarization converter with asymmetric transmission. The metasurface is made of a lattice of metallic sesquialteral (one and a half pitch) helical particles. Each particle contains six rectangular bars arranged in a series one above the another creating a spiral. The proposed metasurface exhibits a dual-band asymmetric transmission accompanied by the effect of a complete polarization conversion in the response on the particular distributions of currents induced in the particle's bars by an incident wave. Regarding circularly polarized waves the metasurface demonstrates a strong circular dichroism. A prototype of the metasurface is manufactured for the microwave experiment by using 3D-printing technique utilizing Cobalt-Chromium alloy, which exhibits good performances against thermal fatigue and corrosion at high temperatures. Our work paves the way to find an industrial solution on fabricating communication components with efficient polarization conversion for extreme environments.

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“…Such helices can be called balanced (in terms of their electrical and magnetic properties) or optimal. The resulting metamaterial formed by such helical meta-atoms will have both dielectric and magnetic properties (I Semchenko et al, 2014;Semchenko et al, 2017). In other words, such a metamaterial will be exotic compared to natural substances familiar to us, which are either dielectrics or magnets.…”

Section: Precise 3d Nanostructuring Technique Based On the Rolling-up...mentioning

confidence: 99%

Application of DNA molecules in nature- inspired technologies: a mini review

Semchenko¹,

Khakhomov²

2023

Front. Nanotechnol.

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The DNA molecule is considered as an object of nature-like technologies, with the focus on the special electromagnetic properties of DNA-like helices. This is the difference from the traditional approach to the DNA molecule as the repository of genetic information. DNA-like helices are regarded as artificial micro-resonators, or “meta-atoms,” exhibiting both dielectric and magnetic properties, that are equally pronounced. The article presents methods for creating spatial structures directly from DNA molecules, as well as from DNA-like helices. It is shown that the design of metamaterials and metasurfaces should be carried out considering the special electromagnetic properties of DNA-like helices. This will make it possible to obtain the required properties of metamaterials and metasurfaces and achieve advantages over other types of artificial structures.

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Investigation of electromagnetic properties of a high absorptive, weakly reflective metamaterial—substrate system with compensated chirality

Cited by 15 publications

References 63 publications

Large‐Area 3D‐Printed Chiral Metasurface Composed of Metal Helices

Large‐Area 3D‐Printed Chiral Metasurface Composed of Metal Helices

3D-printed chiral metasurface as a dichroic dual-band polarization converter

Application of DNA molecules in nature- inspired technologies: a mini review

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