Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

• Petronela Prepelita,
• Florin Garoi and
• Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

• calculated from the absorption spectra. The influence of thickness on the structural and optical properties of the oxide films was investigated. Good optical quality and performance were noticed, which makes these thin films worthy of integration into metamaterial structures. Keywords: magnetron sputtering

• space science come with a new dimension of microstructural representation of advanced functional materials [10][11]. Metamaterial structures are of significant interest not only in space science but also in the fields of public security and sensors [9][10][11]. Materials with dielectric properties, such

• dielectric interfaces in the structure of a metamaterial. This paper reports the experimental conditions for deposition of ZnO and SiO2 films as an improvement of the rfMS vacuum deposition technique for dielectric layers (e.g., ZnO and SiO2) onto quartz substrates. Here we investigated SiO2 and ZnO thin

Molecular dynamics modeling of the influence forming process parameters on the structure and morphology of a superconducting spin valve

• Alexander Vakhrushev,
• Aleksey Fedotov,
• Vladimir Boian,
• Roman Morari and
• Anatolie Sidorenko

Beilstein J. Nanotechnol. 2020, 11, 1776–1788, doi:10.3762/bjnano.11.160

• metamaterial placed between them, formed by periodically alternating thin and thick nanolayers of a ferromagnetic metal. The thickness of the layers affects the magnetic exchange interaction between ferromagnetic layers, which allows for the possibility of artificial magnetic metamaterials designed with

Hexagonal boron nitride: a review of the emerging material platform for single-photon sources and the spin–photon interface

• Stefania Castelletto,
• Faraz A. Inam,
• Shin-ichiro Sato and
• Alberto Boretti

Beilstein J. Nanotechnol. 2020, 11, 740–769, doi:10.3762/bjnano.11.61

Cathodoluminescence as a probe of the optical properties of resonant apertures in a metallic film

• Kalpana Singh,
• Evgeniy Panchenko,
• Babak Nasr,
• Amelia Liu,
• Lukas Wesemann,
• Timothy J. Davis and
• Ann Roberts

Beilstein J. Nanotechnol. 2018, 9, 1491–1500, doi:10.3762/bjnano.9.140

• thick gold film on a silicon substrate. They showed that there was excitation of a magnetic mode of the aperture when excited near the edge of the aperture. Van de Haar et al. [55] also investigated a metamaterial consisting of a periodic array of metal–insulator–metal coaxial waveguides filled with Si

Excitation of nonradiating magnetic anapole states with azimuthally polarized vector beams

• Aristeidis G. Lamprianidis and
• Andrey E. Miroshnichenko

Beilstein J. Nanotechnol. 2018, 9, 1478–1490, doi:10.3762/bjnano.9.139

• the same radiation pattern allowing for the complete destructive interference in the far-field. Toroidal dipole moments became extremely popular in the metamaterial community [8][9], which focused on designing optimal structures for their strong excitation. It turns out that the superposition of

Tailoring polarization and magnetization of absorbing terahertz metamaterials using a cut-wire sandwich structure

• Hadi Teguh Yudistira,
• Shuo Liu,
• Tie Jun Cui and
• Han Zhang

Beilstein J. Nanotechnol. 2018, 9, 1437–1447, doi:10.3762/bjnano.9.136

• could be matched to that of free space while generating a large imaginary part in the refractive index. This work characterizes the absorption performance of such sandwich structures in the terahertz regime. This mechanism could be further extended to other metamaterial devices in the terahertz and

• other frequency ranges because polarization and magnetization can now be selectively controlled in a straightforward manner. Keywords: absorber; cut-wire; metamaterial; terahertz; Introduction The terahertz spectrum is located between the infrared and microwave spectrum. This part of the spectrum has

• study of optical metamaterials. The materials consist of multiple tiny metallic structures fabricated on dielectric substrates for metamaterial applications. The length of the tiny metallic structures of terahertz metamaterials is usually approximately hundreds of micrometers [12][13][14], which is much

Laser-assisted fabrication of gold nanoparticle-composed structures embedded in borosilicate glass

• Nikolay Nedyalkov,
• Mihaela Koleva,
• Nadya Stankova,
• Rosen Nikov,
• Mitsuhiro Terakawa,
• Yasutaka Nakajima,
• Lyubomir Aleksandrov and
• Reni Iordanova

Beilstein J. Nanotechnol. 2017, 8, 2454–2463, doi:10.3762/bjnano.8.244

• noble metal nanoparticles into dielectric oxide and polymer matrices results in a large increase of the third-order nonlinear optical susceptibility, an enhancement of the photoluminescence signal from the matrix, a metamaterial-like behavior, and the possibility of modifying the conductivity of the

Large-scale fabrication of achiral plasmonic metamaterials with giant chiroptical response

• Morten Slyngborg,
• Yao-Chung Tsao and
• Peter Fojan

Beilstein J. Nanotechnol. 2016, 7, 914–925, doi:10.3762/bjnano.7.83

• aluminum foil, nanoimprint lithography and glancing angle deposition. All of these techniques are scalable and pose a significant improvement to standard metamaterial fabrication techniques. Different interpore distances and glancing angle depositions enable the plasmonic resonance wavelength to be tunable

• angle. In biosensor applications this allows for more precise, cheap and commercialized devices. As a proof of concept two different molecules were used to probe the sensitivity of the metamaterials. These proved the applicability to sense proteins through non-specific adsorption on the metamaterial

• will result in an isotropic layer with respect to the incoming light, which is coherent with the obtained results. The average extent of the two plasmonic enantiomer shifts (Δλav = (Δλright + Δλleft)/2 gives an indication of the amount of molecules adsorbed on the gold surface of the metamaterial [10