bluuebunny/crossref_metadata_2025_split huggingface dataset:
Control of spontaneous emission rate in lead halide perovskite film on hyperbolic metamaterial
Authors: Tonkaev Pavel , Makarov Sergey 
Published: November 2021

Abstract
Hyperbolic metamaterials represent a class of nanophotonic architectures with the possibility of controlling density of optical states. Due to this property, hyperbolic metamaterials can be employed as meta-electrodes in optoelectronic devices. On the other hand, lead halide perovskites have several promising properties for application in light-emitting devices. Moreover, a perovskite film is easily deposited on a hyperbolic metamaterial surface. Here, we theoretically show how to accelerate radiative recombination in a perovskite film with a hyperbolic metamaterial. This effect can be applied in light-emitting devices, where radiative recombination is extremely important.
Efficient Third Harmonic Generation with THz Graphene Metasurfaces
Authors: Tsilipakos O , Theodosi A , Soukoulis C M , Economou E N , Kafesaki M 
Published: November 2021

Abstract
We theoretically study graphene-based metasurfaces for efficient third-harmonic generation in the THz regime. The graphene sheet is judiciously patterned into patch and cross geometries, in order to support sharp metasurface resonances at the fundamental and third harmonic frequencies. The reported conversion efficiencies reach -19dB (1.2%).
Microwave realization of multiresonant metasurfaces for achromatic pulse delay
Authors: Tsilipakos Odysseas , Zhang Lei , Kafesaki Maria , Soukoulis Costas M. , Koschny Thomas 
Published: November 2021

Abstract
We propose a microwave realization of a metasurface that can delay broadband pulses without distortion in reflection. In order to obtain large and broadband pulse delay, we harness the synergetic phase delay of five sharply-resonant meta-atoms. More specifically, three electric-LC and two split ring resonators, supporting electric and magnetic dipole resonances, respectively, are combined in a subwavelength unit cell. The resonances are spectrally interleaved and specifically designed to provide a spectrally-constant reflection amplitude and group delay according to the prescription in [ACS Photonics 5, 1101, 2018]. The designed metasurface is electrically ultrathin (λ0/19), since it relies on resonant phase delay exclusively, instead of phase accumulation via propagation. We show delay of 700-MHz Gaussian pulses centred at 11 GHz by 1.9 ns, corresponding to approximately 21 carrier cycles. Our results highlight the practical potential of metasurfaces for broadband dispersion control applications.
Dissipative Kerr solitons at the edge state of the Su-Schrieffer—Heeger model
Authors: Tusnin A. K. , Tikan A. M. , Kippenberg T. J. 
Published: November 2021

Abstract
We investigate analytically and numerically dynamics of dissipative Kerr solitons (DKS) at the edge state of the Su-Schrieffer–Heeger model. We demonstrate that four-wave mixing processes can lead to the formation of DKSs in the edge state of the resonator chain which subsequently initiates photon transfer to the bulk states. We discuss how the edge state soliton can be stabilized by limiting its width within the band gap. Our results contribute to advanced dispersion engineering via mode hybridization in chains of resonators — one of promising ways to achieve broadband frequency combs generation on chip.
Light focusing by silicon nanosphere structures under conditions of magnetic dipole and quadrupole resonances
Authors: Ustimenko N , Baryshnikova K V , Melnikov R , Kornovan D , Ulyantsev V , Evlyukhin A B 
Published: November 2021

Abstract
Metalens is a planar device for light focusing. In this work, we design and optimize c-Si nanosphere metalenses working on the magnetic dipole and quadrupole resonances of the c-Si nanoparticle. Resonant optical response of c-Si nanostructures is simulated by the multipole decomposition method along with the zero-order Born approximation. Limitations of this approach are investigated. The obtained results of optimization are verified by simulation via the T-matrix method.
Application of Born series for modeling of Mie-resonant nanostructures
Authors: Ustimenko N , Kornovan D , Baryshnikova K V , Evlyukhin A B , Petrov M 
Published: November 2021

Abstract
Born series formalism is a widely-used approach to solve a scattering problem in quantum mechanics and optics, including a problem of electromagnetic scattering on the ensembles of Mie-resonant nanoparticles. In the latter case, the Born series formalism can be used when the electromagnetic coupling between nanoparticles is weak. This can be violated near the multipole Mie-resonance of the nanoparticle. In this work, we analyze the applicability of the Born series approach for modeling the resonant optical response of Mie-nanoparticle ensembles and formulate quantitative criteria of Born series convergence and, subsequently, the applicability of this approach.
Laser-assisted formation of luminescent domains in metal- or semiconductor-doped silicate and phosphate glasses
Authors: Lipatiev A.S. , Shakhgildyan G.Yu. , Vetchinnikov M.P. , Lotarev S.V. , Sigaev V.N. 
Published: November 2021

Abstract
In this study, silicate and phosphate glasses doped with Ag or CdS were exposed to femtosecond laser pulses and photoluminescence properties of the laser-written domains were investigated. Laser writing in phosphate glass doped with CdS was found to induce very weak photoluminescence, while laser-written domains in silicate glass had a comparatively high photoluminescence intensity, that was assigned to the formation of the sulphur vacancies in the CdS nanocrystals precipitated under the ultrafast laser pulses. Observed photoluminescence bands in Ag-containing glasses we assigned to the formation of different silver nanospecies which provide photoluminescence bands with the maxima at 685 and 600 nm in Ag-doped silicate and phosphate glasses, respectively.
Open-source implementation of the discrete-dipole approximation for a scatterer in an absorbing host medium
Authors: Yurkin M A , Moskalensky A E 
Published: November 2021

AbstractTheoretical description of light scattering by single particles is a well-developed field, but most of it applies to particles located in vacuum or non-absorbing host medium. Although the case of absorbing host medium has also been discussed in literature, a complete description and unambiguous definition of scattering quantities are still lacking. Similar situation is for simulation methods – some computer codes exist, but their choice is very limited, compared to the case of vacuum. Here we describe the extension of the popular open-source code ADDA to support the absorbing host medium. It is based on the discrete dipole approximation and is, thus, applicable to particles with arbitrary shape and internal structure. We performed test simulations for spheres and compared them with that using the Lorenz-Mie theory. Moreover, we developed a unified description of the energy budget for scattering by a particle in a weakly absorbing host medium, relating all existing local (expressed as volume integrals over scatterer volume) and far-field scattering quantities.
Temperature sensor tag based on supercavity mode of dielectric resonator
Authors: Yusupov Ildar , Filonov Dmitry , Ginzburg Pavel , Rybin Mikhail , Slobozhanyuk Alexey 
Published: November 2021

Abstract
This paper presents a wireless temperature sensor design based on the excitation of a high-Q supercavity mode in a dielectric resonator. Narrow resonance bandwidth improves sensor performance enabling accurate temperature measurements. The sensor consists of a half split ceramic cylinder attached to a metal sheet. The resonator parameters which lead to the excitation of a supercavity mode were obtained numerically. When the ambient temperature increased continuously from 23 to 120°C the notable shift of the resonant frequency was experimentally demonstrated.
Screening effect for excitonic spectrum of Coulomb coupling between two Dirac particles
Authors: Zalipaev V. , Kuidin V. 
Published: November 2021

Abstract
The properties of screening effect for energy spectrum of excitons in monolayer transition metal dichalcogenides are investigated using a multiband model. The excitonic hamiltonian in the product base of the Dirac single-particle is used. The corresponding energy eigenvalue system of the first order ODE (radial equations) was solved using the finite difference method. This enables to determine the energy eigenvalues of the discrete excitonic spectrum and the wave functions. We compare the results for the energy spectrum and the corresponding eigen-functions forms for WS
2 and WSe
2 computed for two different potentials: pure Coulomb and screened Coulomb (Keldysh potential). It is demonstrated that excitonic energy levels for unscreened potential lie dipper, and the corresponding eigen-functions’ forms differ from those obtained for screened one.
Second harmonic generation in hybrid GaP/Au nanocylinders
Authors: Pidgayko Dmitry , Deriy Ilya , Fedorov Vladimir , Mozharov Alexey , Mukhin Ivan , Zadiranov Yuriy , Petrov Mihail , Samusev Anton , Bogdanov Andrey 
Published: November 2021

Abstract
To date, nanoscale dielectric and plasmonic systems with a nonlinear response are of great interest to researchers. This is due to a wide range of their potential applications in nonlinear optical converters and optical communication systems. The fundamental problem of nanoscale frequency converters is the low efficiency of nonlinear optical generation. The reason for this is that the main mechanism for increasing the efficiency of nonlinear signal generation via phase matching is not available at scales smaller than the wavelength. Here, we experimentally investigate the generation of the second optical harmonic in hybrid GaP/Au nanoparticles resonantly enhanced with plasmonic and Mie resonances. Using dark-field spectroscopy, it is shown that nanoantennas support a series of optical resonances in the visible range, the spectral position of which is in good agreement with the numerical simulation. We measured the second harmonic generation spectrum, with sharp resonances which is in accordance with linear scattering. Finally, the dependence of the second harmonic optical signal on the polarization is measured.
Characterization of Organic Compound Doped Inorganic Ammonium Phosphate: Crystal Formation and Opto-Electrical Properties
Authors: Jegatheesan A. , Rajasekaran E. 
Published: November 2021

Abstract
The opto-electrical properties of mixing organic compound with inorganic material is the subject matter of electronic industry. Nonlinear active single crystals of amino acid doped ammonium phosphate was characterised using various experimental techniques. Specifically alanine was doped with inorganic material and characterised in terms of carbon role in structure formation and related properties. The structural and electrical properties are studied by analysing absorption, transmission, hardness and conductivity of the doped one. The structure and electrical framework are well suited with expected values of pure inorganic one. Otherwise the organic one mixed with inorganic one does changes these properties remarkably which are essential for application in modern livelihood of human nature. The single crystal obtained from doping of organic one with the properties of inorganic material proves to be suitable for robo one to walk away with newer developments. It promises a newer way of developing crystals with good mechanical strength, flexible and all kinds of opto-electrical properties. Interestingly the modern electronic appliances will greatly benefit from this development of organic one to the inorganic one.
Analysis of the thermoluminescent of borate glass by computerized glow curve deconvolution in kinetic formalism
Authors: Nabadwip Singh S. 
Published: November 2021

Abstract
Borate based phosphor is a suitable material for thermoluminescence dosimetry. Glow curves of β-irradiated pure borate glass has been analyzed by restoring to Computerized Glow Curve Deconvolution (CGCD) technique and evaluate the trapping parameters namely activation energy (E), frequency factor (s) and order of kinetics (b). It is observed that there are stable peaks in the range 110° to 150°C even to various extent of thermal cleaned ones also. The activation energies of the phosphor are in the range 0.898 to 1.325 eV and frequency factors are in the order of 1011 to 1013 s−1.
Predicting the peak structural displacement preventing pounding of buildings during earthquakes
Authors: Khatami S M , Naderpour H , Mortezaei A , Tafreshi S T. , Jakubczyk-Gałczyńska A , Jankowski R 
Published: November 2021

Abstract
The aim of the present paper is to verify the effectiveness of the artificial neural network (ANN) in predicting the peak lateral displacement of multi-story building during earthquakes, based on the peak ground acceleration (PGA) and building parameters. For the purpose of the study, the lumped-mass multi-degree-of-freedom structural model and different earthquake records have been considered. Firstly, values of stories mass and stories stiffness have been selected and building vibration period has been automatically calculated. The ANN algorithm has been used to determine the limitation of the peak lateral displacement of the multi-story building with different properties (height of stories, number of stories, mass of stories, stiffness of stories and building vibration period) exposed to earthquakes with various PGA. Then, the investigation has been focused on critical distance between two adjacent buildings so as to prevent their pounding during earthquakes. The proposed ANN has logically predicted the limitation of the peak lateral displacement for the five-story building with different properties. The results of the study clearly indicate that the algorithm is also capable to properly predict the peak lateral dis-placements for two buildings so as to prevent their pounding under different earthquakes. Subsequently, calculation of critical distance can also be optimized to save the land and provide the safety space between two adjacent buildings prone to seismic excitations.
On exponential Diophantine equation 17x+83y= z2and 29x+71y= z2
Authors: Paisal Komon , Chayapham Pailin 
Published: November 2021

AbstractThis Diophantine is an equation that many researchers are interested in and studied in many form such 3x+5y· 7z= u2, (x+1)k+ (x+2)k+ … + (2x)k= ynand kax+ lby= cz. The extensively studied form is ax+ by= cz. In this paper we show that the Diophantine equations 17x+83y= z2and 29x+71y= z2has a unique non – negative integer solution (x, y, z) = (1,1,10)
Effect of electrical poling on the structural, dielectric and photoluminescence properties of small concentration of Ho+3 substituted NBT
Authors: Kumar Abhinav , Katta Venkata Seshaiah , Kumar Raavi Sai Santosh , Asthana Saket 
Published: November 2021

Abstract
The effect of electrical poling on the room temperature structural, dielectric and photoluminescence properties of small concentration (i.e. 0.5 mole%) of Ho+3 substituted sodium bismuth titanate ferroelectric material (Na0.5Bi0.495Ho0.005TiO3 abbreviated as NBT-0.5Ho) has been investigated. Its crystal structure was found to be the mixture of two phases of rhombohedral (R3c) and monoclinic (Cc) in which monoclinic (Cc) coexisted as major phase. Comparative study of X-ray diffraction (XRD) patterns of electrically poled and unpoled specimens of NBT-0.5Ho revealed that electric field irreversibly transformed crystal structural of dominant Cc (≈-94.05% phase fraction) phase to R3c (≈70.6% phase fraction) as major phase. Dielectric value and its dispersion with frequency were significantly decreased in poled specimen which is ascribed to electric field driven structural change. Two photoluminescence (PL) emissions at 655nm and 756nm were obtained in NBT-0.5Ho. PL intensity was considerably tuned in effect of electrical poling in term of quenching. Obtain quenching is correlated with induced structural ordering towards higher symmetry phase (R3c) in effect of electric poling which is confirmed from XRD analysis. Obtained additional functionality of photoluminescence in the NBT-0.5Ho ferroelectric material and its tuning in effect of electric field opens the possibility in the material for optoelectronic devices applications.
A New Technique for solving Picture Fuzzy Differential Equation
Authors: Dhivya J. , Meena K. , Saroja M.N. 
Published: November 2021

Abstract
Picture Fuzzy set (PFS) is an extension of fuzzy set (FS) and intuitionistic fuzzy set (IFS) that can model the uncertainty by integrating the concept of positive, negative and neutral membership degree of an element. In this paper, the solution of Picture Fuzzy ordinary differential equation of first order by means of picture fuzzy number is exemplified and intend to define the picture fuzzy number for (∝, δ, β)-cut. Finally, we illustrate the numerical example for drug distribution in human body for different drug levels is discussed for determining its effectiveness and practicality of the first order differential equation involving picture fuzzy numbers.
Effect of temperature on mixing behavior and stability of liquid Al-Fe alloys
Authors: Bhandari I B , Panthi N , Gaire S , Koirala Ishwar 
Published: November 2021

Abstract
A theoretical model based on the assumption of compound formation in binary liquid alloy has been used to investigate the thermodynamic properties (free energy of mixing, enthalpy of mixing and entropy of mixing), microscopic properties (concentration fluctuation in long wavelength limit and chemical short range order parameter), surface properties (surface tension and surface composition) and dynamic properties ( viscosity and diffusion coefficient). All the properties of Al2Fe binary melt have been measured using the same energy parameters configured for experimental values of free energy of mixing. The energy parameters are detected as independent of concentration, but depend on temperature. The findings are well consistent with the experimental standards.
Justification of the parameters of the blade working body of the plowshare that forms a longitudinal bollard among the rows of cotton
Authors: Murtazoev A.N. , Shodiyeva S.U. 
Published: November 2021

Abstract
In this article the coverage width of justification of the parameters of the blade working of the plowshare that forms a longitudinal bollard among the rows of cotton, the results of the theoretical research conducted on the determination of the depth of immersion in the soil, the direction of movement and the angle of installation relative to the bottom of the rut are presented. It is noted that In the process of work, the working body of the device with the agitator should have a coverage width of 26,1 CM, the depth of immersion in the soil is 14,8 CM, so that it can form a threshold with the maximum height without damaging the sprouts and their roots, the direction of movement and the mounting angles relative to the bottom of the rut should be between at least 55° and 27-29° respectively.
Structural analysis on the basis of effect of molybdenum on the Pr2O3 doped lead borate glasses series-II
Authors: Kolavekar Sangeeta B. , Ayachit N.H. 
Published: November 2021

Abstract
This paper explains the role of molybdenum on the structural analysis of the investigated rare earth ion Pr3+ doped, lead borate (75 PbO — [25 – (x+y)]B2O3—yMoO3—xPr2O3) glass matrix has been discussed using the relation between Tg and structural parameters like average cross-link density (

n
¯

c

), average stretching force constant (F) and the number of bonds per unit volume (nb). Densities, molar volume have been measured as a function of MoO3 content. Linear variation in density and in the molar volume has been observed and is credited to the role of MoO3 in the investigated glasses. Based on the properties like good stability and bond strength, investigated glasses possibly suitable for the design of optoelectronic devices.
Z Open Sets and Maps in Nano Bitopological Spaces
Authors: Arul Selvaraj X. , Balakrishna U. 
Published: November 2021

Abstract
In this paper, nano (Ji, Jj
)Z open sets, nano (Ji, Jj
)Z interior and nano (Ji, Jj
)Z closure are introduced in nano (Ji, Jj
) bitopological spaces. Moreover, nano (Ji, Jj
)Z-σk
continuous functions in nano (Ji, Jj
) bitopological spaces are introduced and some of their characteristics are derived.
Optimizing the Financial Management of Electronic Companies using Goal Programming Model
Authors: Hoe Lam Weng , Siew Lam Weng , Fun Lee Pei 
Published: November 2021

Abstract
The swift development and transformation of emerging technologies such as augmented reality, robotics, biometrics and 3D printing place varying degree of pressure to the electronic industry to play a trailblazing role in making the world a smarter place of living. The concept of smart city increases the demand for the upgrades and sophistication of electronic components. Shorter product life cycles of personal and commercial electronic products also keep the electronic companies in a never-ending loop for huge investments in materials, equipment and expertise. Electronic companies in Malaysia are still facing financial stress in their operations. Therefore, this paper aims to optimize the financial management of listed electronic companies, namely D&O, GTRONIC, UNISEM and VITROX with asset, liability, equity, earning, profit and optimum management item as the objectives using goal programming model. The benchmarks of all the goals are obtained by comparing the maximum and minimum values of the optimal values of these companies. The results of this study show that the goal programming model is able to generate the optimal solution for each company. Besides liability and earnings, all the goals have been attained by these companies upon analysis using goal programming. Possible refinement values particularly for liabilities for all the companies have been generated from this model to provide insights for these companies to benchmark for risk alleviation and strategic decision making.
Overview of methods in Oil spill technology
Authors: Singh Megha , Bharti Aashirwad , Kodavaty Jagadeeshwar 
Published: November 2021

Abstract
Over the decades oil spills have been the biggest threat to the aquatic life and to a nation’s economy. Many methods were suggested in the literature to remove the oil that is present on the surface of sea water after the spill. Hydrogel formation is one of the best technique that could be adopted to handle oil spills. Since the oil spill is a oil and water emulsion, formation of hydrogels with these emulsions could lead to the recovery of oil. The formation of hydrogels can be either physically crosslinking the polymer molecules or covalent bonding among the entangled polymer molecules. The methods of making the hydrogels conceivable to acquire surface hydrophobicity and oleophilicity. Hydrogel technology could be more cost effective and efficient in recovering the oil from the spill, eco-friendly and easy to use. It is proposed that the hydrogels could be potential candidates for handling the oil spills. The methods described in this review explains the various hydrogels that could be utilized for oil spill recovery.