Showing papers in "Optik in 2021"

TL;DR: In this article, a lead-free, eco-friendly, and stable Cs2TiBr6-based all-inorganic n-i-p structured perovskite solar cell with the application of all inorganic charge transport materials for higher stability was proposed.

TL;DR: A series of borate glass (80-y)B2O3-10ZnO-10CdO-yBaO, where 10 ≤ y ≤ 30, was synthesized by the melt quench method as discussed by the authors.

TL;DR: In this article, the generalized higher-order Schrodinger equation with traveling wave solutions is considered and compatibility conditions are found for existence of the general solution for the system of differential equations.

TL;DR: A novel approach based on the time delay of the new chaotic system, which has the different dynamical behavior over time delay, designed to achieve the image encryption.

TL;DR: In this article, the mass attenuation coefficient has been derived using EPICS2017 library, which is higher than that determined by Phy-X/PSD by approximately 2.5% for the five glass samples.

TL;DR: In this article, the authors theoretically investigated the sensing performance of one-dimensional photonic crystal (PC) based sensor for the detection of blood plasma and cancer cells, which consists of a sample layer sandwiched between two identical PC stacks of silica (SiO2) and titania (TiO2).

TL;DR: In this article, a traveling wave reduction of the resonant nonlinear Schrodinger equation with arbitrary refractive index is considered and the system of equations for real and imaginary parts is presented.

TL;DR: In this paper, the authors compute fractional Lorentz force equations associated with the magnetic n -lines in the normal direction in Minkowski space, and derive the necessary and sufficient conditions that have to be satisfied by these quantities to define the Lorenz magnetic flux surfaces based on the inextensible Heisenberg antiferromagnetic flow model in MINKowski space by considering arc-length and time-dependent orthogonal curvilinear coordinates.

TL;DR: In this paper, the soliton and other solutions for a weakly nonlocal Schrodinger equation of the fifth order involving nonlinearity of the parabolic law and an external potential are discussed.

TL;DR: In this paper, a generalization of the nonlinear Schrodinger equation is presented, which takes into account both an arbitrary reflective index in optical fiber and the phenomenon of non-local nonlinearity.

TL;DR: In this article, the exact soliton solutions under the effect of cubic-quintic-septic nonlinearities for a 6-order (3 + 1 ) -dimensional nonlinear time-fractional Schrodinger equation with fourth-order and sixth-order dispersive terms were examined.

TL;DR: A quad-band plasmonic perfect absorber (PPA) based on all-metal nanostructure metasurface in infrared regime was proposed and investigated numerically, which could be applicable for refractive index (RI) sensing as discussed by the authors.

TL;DR: In this article, a multilayer surface plasmons resonance (SPR) refractive index sensor using angle interrogation was investigated using a modified configuration to enhance the performance of the sensor, which achieved a sensitivity of 280 ° /RIU with four thin layers of BaTiO3 and mono layer of graphene.

TL;DR: In this article, a time-fractional Ablowitz-Ladik model is investigated by using the fractional exponential function approach, and bright and dark discrete soliton solutions, exponential discrete solutions and discrete unusual wave solutions are found.

TL;DR: The experimental results show that, the proposed GAAHE technique performs superior over other existing enhancement techniques.

TL;DR: In this article, the bright and singular solitons of (2 + 1 ) -dimensional improved nonlinear Schrodinger equation with spatio-temporal dispersions, group-velocity dispersions and power law nonlinearity are investigated.

TL;DR: In this paper, a consolidated geometric magnetic interpretation of binormal evolution of wave propagation field in the normal orientation of curved direction by the nonlinear fractional Schrodinger system with repulsive type was presented.

TL;DR: A novel face masks detection dataset consisting of 52,635 images with more than 50,000 tight bounding boxes and annotations for four different class labels namely, with masks, without masks, masks incorrectly, and mask area is proposed which makes it a novel contribution for variety of face masks classification and detection tasks.

TL;DR: In this article, the authors presented transformation equations for electromagnetic fields of polarized light ray traveling by magnetic optical fiber on De Sitter space S 1 2, where the new spherical frame of some Lorentzian spherical systems that are illustrated simultaneously with co-ciled magnetic optical fibre was illustrated in De Satter space.

TL;DR: In this paper, the CAM-B3LYP method of DFT was used to investigate the electronic and optical properties of pure and superhalogen doped g-C3N4 clusters.

TL;DR: In this paper, the authors enumerate soliton solutions to Kudryashov's equation for the model that are recovered by improved modified modified extended tanh-function approach.

TL;DR: In contrast limited dynamic quadri-histogram equalization (CLDQHE) as mentioned in this paper, the original histogram of an image is divided by a threshold scheme into four sub-histograms.

TL;DR: In this article, the generalized Schrodinger equation with a new form of arbitrary refractive indices for the description of propagation pulse in an optical fiber is considered, and exact solutions of the equation are looked for taking into account the traveling wave reduction.

TL;DR: In this article, a weakly nonlocal Schrodinger equation (WNSE) involving the parabolic law nonlinearity is considered and as a success, its soliton solutions including bright and dark solitons are constructed.

TL;DR: In this paper, a high sensitivity triple layer photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) is proposed for RI analytes sensing, which assists to achieve high sensitivity, larger birefringence, maximum resolution and high transmittance profile.

TL;DR: In this article, the synthesis of fluorescent derivatives of 2,2′-bipyridine (bpy) has been described and analyzed by various spectroscopic techniques, such as photoluminescence spectra and I-V curves from cyclic voltammetry.

TL;DR: In this article, the soliton solutions of the nonlinear Lakshmanan-Porsezian-Daniel (LPD) model are extracted, using generalized projective Riccati equations method.

TL;DR: In this paper, a series of small molecule based non-fullerene acceptor molecules (CS1-CS5) was designed by doing end-capped modification of NTTI (reference molecule) for OSCs and characterized with density functional theory and time-dependent (TD-DFT) quantum chemical calculations, which revealed that all newly constructed SMs-NFAs better exciton dissociation while, much lower LUMO energy levels which might facilitate to boost the reorganizational energies, open-circuit voltage, and photocurrent density values which will ultimately boost

TL;DR: In this paper, the structural and optical properties from aggregated Au:ZnO. CSNPs were identified via X-ray diffraction, transmission electron microscopy, Fourier transform infrared, and ultraviolet-visible absorption spectrum.

TL;DR: In this paper, the authors established soliton solutions and other solutions for the optical Bragg grating fibers that is considered with a cubic-quintic-septic form of medium nonlinear.