Spatial Separation of Scalar Light Beams with Orbital Angular Momentum Using a Phase Metasurface

JETP Letters - The concept and design optimization of a polarization-independent dielectric metasurface for the spatial separation of scalar light beams with different values of the orbital angular...     

A Gelfand–Tsetlin-type basis for the algebra $$\mathfrak{sp}_4$$ and hypergeometric functions

Theoretical and Mathematical Physics - We consider a realization of a representation of the $$ \mathfrak{sp} _4$$ Lie algebra in the space of functions on a Lie group $$Sp_4$$ . We find a function...     

Application of a Kinetic Model for Studying the Spatial Spread of COVID-19

Doklady Physics - A one-dimensional model based on a kinetic-type equation is proposed for studying the dynamic distribution density of virus carriers in time and space while taking into account...     

Multivariate Calibration of Concentrations of C,Mn, Si,Cr, Ni,and Cu in Low-Alloy Steels from Raw Low-Resolution Spectra Obtained By Laser-Induced Breakdown Spectroscopy

Journal of Applied Spectroscopy - Multivariate models were developed on the basis of raw low-resolution LIBS spectra of reference samples of lowalloy steels for calibration of the concentrations of...     

Neutron Production from Structured Targets Irradiated By an Ultrashort Laser Pulse

Journal of Russian Laser Research - We study the laser-driven generation of thermonuclear neutrons from targets with a microstructured surface in the form of deuterated microwires, using...     

Specific Features of the Interaction of Microwave Radiation with Magnetic Colloids

Radiophysics and Quantum Electronics - We study, both experimentally and theoretically, propagation of electromagnetic waves in the microwave range (10.5 GHz) through homogeneous magnetic colloids...     

On the Homogenization of an Optimal Control Problem in a Domain Perforated by Holes of Critical Size and Arbitrary Shape

Doklady Mathematics - The paper studies the asymptotic behavior of the optimal control for the Poisson type boundary value problem in a domain perforated by holes of an arbitrary shape with...     

Infinitely Many Solutions of Nonlocal Kirchhoff-Type Equations via Perturbation Methods

Mathematical Notes - We study the multiplicity of weak solutions to the boundary-value problem $$\begin{alignedat}{2} - M\biggl(\iint_{\mathbb R^{2N}}|u(x)-u(y)|^2 K(x-y)\,d x\,d y\biggr)\mathscr...     

Strategies in boosting photosensitization for biomedical applications

Science China Chemistry -