Igor V Minin

Siberian State University of Geosystems and Technology

In this paper, we numerically investigate a photonic hook (PH) generated by a dielectric micro-cylinder illuminated under an electric dipole using the finite element method. At first, we show the properties of the photonic nanojet (PNJ) produced by the micro-cylinder under an electric dipole. Then, we find that a PH can be obtained when the electri...

A gas-hydrate method of CO2 gas storage is one of the modern technologies for reducing it emissions into the atmosphere. The breakup of gas bubbles by a shock wave is an actual area of scientific and technological research. However, it is less known that such research began in the late 1950s in the USSR by Prof. Vladilen F. Minin. The paper present...

Экспериментально продемонстрирован эффект смещения изображения при асимметричном облучении диэлектрической сферы гауссовым терагерцовым пучком в системах терагерцового имиджинга. На основе численных расчетов, выполненных с использованием операторной теории рассеяния, было показано искривление области локализации электромагнитного поля вблизи тенево...

The shift of an image of a dielectric sphere asymmetrically irradiated by a terahertz Gaussian beam in terahertz imaging systems has been demonstrated experimentally. Numerical calculations using the operator scattering theory have shown the bending of the localization region of the electromagnetic field near the shadow surface of the dielectric sp...

Relativistic directed radiation flows (jets) are localized clods of ionized matter propagating with a speed close to that of light. In some active galactic centers supermassive black holes produce intense radiant jet-like fluxes and particles moving with the speed close to that of light. Some particles accelerated to such speed are ejected by two l...

Based on the optical Magnus effect, the analytical expressions of the electromagnetic field that a spinning dielectric sphere illuminated by polarized plane waves are derived according to the “instantaneous rest-frame” hypothesis and Minkowski’s theory. More attention is paid to the near field. The unusual optical phenomena in mesoscale spheres wit...

Теория Лоренца–Ми, описывающая рассеяние света сферическими частицами, была создана в 1908 г. Тем не менее большинство открытий, сделанных в течение последних 30 лет (например, фотонные струи, резонанс Фано, оптические анаполи, оптические вихри, акустические струи), могут быть описаны в рамках этой теории – они были «зашифрованы» в формулах Лоренца...

Large-scale applications of real-time terahertz (THz) imaging are often limited by the spatial resolution of a THz microscope. One of the simplest approaches to circumvent this problem in practice and achieve resolution below the diffraction limit consists in placing a dielectric particle with a size comparable to the radiation wavelength in the vi...

Based on the optical Magnus effect, the theoretical framework that scattering generated by a plane wave illuminating a spinning dielectric sphere is proposed using the “instantaneous rest-frame” hypothesis and Minkowski's theory. The analytic expressions of electromagnetic fields are derived for a dielectric sphere rotating around the z-axis exerte...

The resonance scattering caused by the interaction between a dielectric cylinder rotating at a steady angular velocity and a plane wave are studied using the method of separation of variables and the multipole expansion method. In addition, the effect of resonance on curved photonic nanojets (PNJ) is also analyzed. During the study, the critical va...

This paper studies the photonic hooks (PH) generated by the interaction of a dielectric sphere rotating at a certain angular velocity with a plane wave. Based on the instantaneous static frame theory and the partial-wave series expansion method in spherical coordinates, with the help of the separated variable method, we obtain the analytical soluti...

На основе теории Ми представлены результаты численного моделирования эффекта суперрезонанса для полой диэлектрической сферы. Впервые показано, что слабодиссипативные мезоразмерные сферы с воздушной полостью поддерживают резонанс Фано высокого порядка, связанного с внутренними модами Ми. Достижение суперрезонанса в полой сфере обеспечивается точным...

Curved beams have attracted attention in areas such as optical manipulation, and the introduction of photonic hook (PH) has made it easier to obtain curved beams. Therefore, modulation of photonic hook is a hot topic for future research. In this paper, the influence of optical anisotropy on the characteristics of photonic hook has been studied. By...

A gas-hydrate method of CO2 gas storage is one of the modern technology for reducing it emissions into the atmosphere. The breakup of gas bubbles by a shock wave is an actual area of scientific and technological research. However, it is little known that such research began in the late 1950s in the USSR. The article presents the main discoveries re...

High-quality optical Fano resonances, which exist in a spherical dielectric microparticle in the spatial configurations of the whispering-gallery like modes (WGMs) and recently are referred to as the “super-resonances”, possess extremal sensitivity not only to the micro-cavity size and shape but also to the optical properties of the particulate mat...

Resonant light scattering by mesoscale dielectric spheres has received enormous attention and found many interesting applications. The recently emerged field of Mesotronics provides novel opportunities for wavelength-scaled optics and new fundamental aspects are still being uncovered. It has recently been demonstrated that high-order Mie resonances...

Предложена гипотеза образования кумулятивной струи при релятивистском выбросе из черной дыры на примере численно газодинамического механизма. Показано, что в этом случае существует возможность образования кумулятивных струй при выбросе из некоторой сплошной среды сгустка, обладающего начальной скоростью. Возможно, сам релятивистский выброс из черно...

Известно, что на поверхности Луны на дне плоских кратеров наблюдается четко выраженная горка. Нами было высказано предположение о зависимости формы кратера от формы метеорита. Вычислительный экспери- мент по изучению особенностей соударения сверхскоростных тел с преградой показал существование многих форм кратеров в зависимости от формы удар- ника...

In this paper, we demonstrate a novel photonic hook being initiated using an air–liquid interface (ALI). This bent light focus is produced by immersing a dielectric micro-cylinder partially at the edge of a thin liquid film whose thickness is smaller than the diameter of the micro-cylinder. Unlike the well-known properties of normal near-field focu...

As it known an examples of nanostructured light obtained with a non-charged mesoscale dielectric particle are the photonic hook and its simplest form - photonic jet, which results from the plane-wave diffraction by a dielectric particle. Tuning the ice layer thickness, one may engineer a Fano-like resonance during a freezing from the outside in wat...

High-quality optical Fano resonances, which exist in a spherical dielectric microparticle in the spatial configurations of the "whispering-gallery modes" (WGMs) and recently are referred to as the “superresonances”, possess extremal sensitivity not only to the micro-cavity size and shape but also to the optical properties of the particulate materia...

This paper pays attention to the broader interest of freezing water droplets in mesotronics, particularly to their use as a new all-optical device platform. Here, we show that a freezing mesoscale water droplet with a low Bond number can behave as fully biocompatible natural microlense to form a photonic hook for application in a tunable temperatur...

Resonant light scattering by mesoscale dielectric spheres has received enormous attention and found many interesting applications. The recently emerged field of Mesotronics provides novel opportunities for wavelength-scaled optics and new fundamental aspects are still being uncovered. It has recently been demonstrated that high-order Mie resonances...

Nowadays the Internet is a highly developed communication system. Every day the number of the users of the Wikipedia increases for thousands of people. Wiki database is open for everybody: either a law-abiding and decent person or a quite opposite one. This leads to such problems of the defense of information as copyright and transmission of hidden...

На основе теории Ми представлены результаты численного моделирования эффекта суперрезонанса для полой диэлектрической сферы. Впервые оказано, что слабодиссипативные мезоразмерные сферы с воздушной полостью поддерживают резонанс Фано высокого порядка, связанного с внутренними модами Ми. Достижение суперрезонанса в полой сфере обеспечивается точным в...

The superresonance effect for a hollow dielectric sphere is numerically simulated with the Mie theory. It is shown for the first time that weakly dissipative mesoscale spheres with an air-filled cavity exhibit a high-order Fano resonance related to internal Mie modes. Superresonance in a hollow sphere is achieved by the accurate choice of the cavit...

Water droplets are a perspective highly abundant phase-change material to realize tunable optical lenses. We demonstrated for the first time that freezing mesoscale water droplet could be use as tunable optical lens, such that freezing becomes an asset despite both the low absolute values of the refractive indices of the shell and core materials an...

Here we show that mesoscale freezing water droplet with low Bond number can behave as fully biocompatible natural microlenses to form the photonic hook in application to tunable optical switch. We first introduce and demonstrated the basic concepts of all-optical switch without changes in the wavelength of illumination of a particle or any moving p...

Tunable optical devices are of great interest as they offer adjustability to their functions. Temporal optics is a fast-evolving field, which may be useful both for revolutionizing basic research of time-dependent phenomena and for developing full optical devices. With increasing focus on ecological compatibility, bio-friendly alternatives are a ke...

Представлены результаты численного можелирования и экспериментального подтверждения анизотропной фокусировки мезоразмерной (параметр размера Ми около 18) звуковой кубической линзы на основе V-образных пластинчатых структур. Впервые показано, что такая линза с размером грани около 3 длин волн обеспечивает фокусировку звуковой волны в воздухе в дифра...

We report on resolution enhancement of sub-terahertz (THz) images by using the terajet effect. A mesoscale cuboid dielectric particle, used to establish the terajet, was placed in front of an object located at the focus of the THz beam. The object under study was based on a printed circuit board (PCB) perforated with different holes with diameters...

Anisotropic focusing by a mesoscopic (Mie size parameter of about 18) acoustic cubic lens based on V-shaped plate structures has been simulated numerically and confirmed experimentally. It has been shown for the first time that this lens with an edge dimension of about three wavelengths ensures the focusing of an acoustic wave in air into a diffrac...

We present results of the experimental verification of a concept of the previously proposed all-optical wavelength-selective multichannel switch based on an off-axis Wood zone plate in the millimeter waveband without the use of micromechanical devices or non-linear materials. A laboratory prototype of such a device is considered and its main parame...

Reflection photonic jet (r-PJ) is a new type of photonic jet (PJ), formed in reflection mode, which has the potential to revolutionize mesoscale photonics in many applications, e.g. optical nanoparticle trapping, liquids and gas refractive index sensing, signal switching, etc. In this paper, we present a microfluidic channel based on a hollow micro...

In this paper, we demonstrate a novel semi-immersive photonic hook, which is a bent light focus by a dielectric micro-cylinder partially immersed at the edge of a thin liquid film. It only propagates along the air-liquid interface (ALI) and possesses a formation mechanism without material processing for micro-particle and modulation of light irradi...

In this paper, we demonstrate a novel semi-immersive photonic hook, which is a bent light focus by a dielectric micro-cylinder partially immersed at the edge of a thin liquid film. It only propagates along the air-liquid interface (ALI) and possesses a formation mechanism without material processing for micro-particle and modulation of light irradi...

Tunable optical devices are of great interest as they offer adjustability to their functions. Temporal optics is an evolving new field, and utilizing it are useful as for revolutionize basic research of time-dependent phenomena as for leading toward full optical devices. With increasing focus on ecological compatibility, bio-friendly alternatives a...

Tunable optical devices are of great interest as they offer adjustability to their functions. Temporal optics is an evolving new field, and utilizing it are useful as for revolutionize basic research of time-dependent phenomena as for leading toward full optical devices. With increasing focus on ecological compatibility, bio-friendly alternatives a...

Adipose tissue (AT) optical properties for physiological temperatures and in vivo conditions are still insufficiently studied. The AT is composed mainly of packed cells close to spherical shape. It is a possible reason that AT demonstrates a very complicated spatial structure of reflected or transmitted light. It was shown with a cellular tissue ph...

Dielectric mesoscale spheres have aroused strong interest because of their potential to localize light at deep subwavelength volume and to yield extremal internal magnetic and/or electric field enhancements. Recently, it was showed that such particle could support high-order Mie resonance modes with giant field localization and enhancement. Optimiz...

In this study, we propose a novel design of triangular mesoscale Janus prisms for the generation of the long photonic hook. Numerical simulations based on the finite-difference time-domain method are used to examine the formation mechanism of the photonic hook. The electric intensity distributions near the micro-prisms are calculated for operation...

Results of numerical simulation of the superresonance effect in a dielectric (water) mesoscale sphere with a low refractive index based on the Mie theory are presented. They shown that not only the previously studied weakly dissipative mesoscale spheres made of a material with "medium" (∼1.5) and high (>2) refractive indices, but also low-index (∼1...

The paper under discussion has some shortcomings in regard to mathematical formulation of the problem related to acoustics, its justification, some references analyses and the text, and we feel that this study has not been finished to its full extent. From the point of view of acoustic jet formation, the mathematical model used by the authors has a...

In this manuscript, we demonstrate the design and experimental proof of an optical cloaking structure that multi-directionally conceals a perfectly electric conductor (PEC) object from an incident plane wave. The dielectric modulation around the highly reflective scattering PEC object is determined by an optimization process for multi-directional c...

In this study, we propose a novel design of the triangular mesoscale Janus prisms for the generation of the long photonic hook. The numerical simulations based on the finite-difference time-domain method are used to examine the formation mechanism of the photonic hook. The electric intensity distributions near the micro-prisms are calculated for op...

The results of an experimental verification of the concept of the previously proposed all-optical wavelength-selective multichannel switch based on an off-axis Fresnel zone plate in the millimeter wavelength range without the use of micromechanical devices or non-linear materials are presented. A laboratory prototype of such a device is considered...

The mesoscale optical phenomena in dielectric spheres with a size parameter q=2πR/λ∼10, where R/λ is the particle radius in incident wavelength units, have been considered. These phenomena make it possible to implement microscopy beyond the diffraction resolution limit. Another example of mesoscale optical phenomena is the field localization in imm...

Nowadays the Internet is a highly developed communication system. Every day the number of the users of the Wikipedia increases for thousands of people. Wiki database is open for everybody: either a law-abiding and decent person or a quite opposite one. This leads to such problems of the defense of information as copyright and transmission of hidden...

In this manuscript, we demonstrate the design and experimental proof of an optical cloaking structure which multi-directionally conceals a perfectly electric conductor (PEC) object from an incident plane wave. The dielectric modulation around the highly reflective scattering PEC object is determined by an optimization process for multi-directional...

The recently emerged field of Mesotronics provides novel opportunities for subwavelength magnetic and field localization and giant enhancement by mesoscale dielectric particles and structures from low-index to high-index materials, supported by novel optical phenomena. In this case, two regions: non-resonant and resonant, can be distinguished. In t...

Acoustic and photonic hooks have inspired study of new subwavelength structures to be used as lenses for ultrasound. A new V-shaped plate lens structure exhibits anisotropic focusing behavior in 2D finite element method simulations. The near field is shown in both orientations of the structure, and a frequency sweep was performed to study the respo...

The development of all-dielectric structures with high magnetic response at optical frequencies has become a matter of intense study in past years. However, magnetic effects are weak at optical frequencies due to the small value of the magnetic permeability of natural materials. To this end, natural dielectric materials are unemployable for practic...

We reported on the proof of the concept of dielectric mesoscale particle array-based cover glass for optical super-resolution microscopy. The limited field of view is a limitation of ultra-high resolution microscopy based on single mesoscale particles. Using the forces of dielectrophoresis, we placed an ordered mesoscale spheres array over the samp...

Optical switches are key elements in modern network communications. We present the results of the experimental verification of a new theoretical concept proposed earlier for a full-optical wavelength-selective dual-channel switch based on the photonic hook effect, which is free from using any micro-mechanical devices or nonlinear materials. A large...

Представлены результаты численного моделирования на основе теории Ми эффекта суперрезонанса для диэлектрической сферы с низким показателем преломления. В качестве материала мезоразмерной сферы использована вода. Впервые показано, что не только ранее изученные слабодиссипативные мезоразмерные сферы из материала со «средним» (~ 1,5) и высоким (более...

Here, we present a method to produce bent light beams known as photonic hooks. This is done by engineering a pair of dielectric particles immersed in free space and exploiting the particular diffraction and scattering characteristics of each particle. We demonstrate how a dual-dielectric structure with symmetrical lateral dimensions and different r...

Photonic hook (PH) is a new type of artificial self-bending beam focused by a dielectric particle-lens with a curved waist smaller than the wavelength, which has the potential to revolutionize mesoscale photonics in many applications, e.g., optical trapping, signal switching, imaging, etc. In this paper, we discover a new mechanism that the highly...

It is shown that in the optical range it is fundamentally possible for nonabsorbing mesodimensional spheres to realize high-order Fano resonances associated with internal Mie modes. Based on simulation using the Mie theory, it is shown that for a spherical mesodimensional particle made of a real dielectric material-BK7 borosilicate glass, it is pos...

Optical switches are a key element in modern network communications. We present the results of experimental verification of a new theoretical concept proposed earlier for a full-optical wavelength-selective dual-channel switch based on the photonic hook effect, which is free from using any micro-mechanical devices or nonlinear materials. A large-sc...

This paper reports on optimization of the parameters, by mean of electromagnetic simulations to obtain the values of the parameters that permit optimal conditions for terahertz (THz) radiation detection using the terajet effect generated by inserting a cuboid-shaped mesoscopic dielectric particle in the optical path at in the front of the rectifier...

In this paper, a broadband mode converter based on terahertz spoof surface plasmon polaritons is demonstrated. The incident surface waves in the TM0 mode are converted to the TM1 mode within the frequency range of 0.55–0.75 THz. Furthermore, a broadband mode division multiplexer is proposed, which simultaneously supports the TM0, TM1 and TM2 modes....

Recently, a new concept for photonic switching based on photonic hook phenomena was introduced [1,2]. When two-wavelengths beams, 1310 nm and 1550 nm, pass through a dielectric Janus particle, they were separated and guided to different routes because of different bending strengths, thus permitting effective photonic switching on microscale through...

The size parameter q = 2πR/λ in spheres with a radius R = (2–3)λ (λ is the radiation wavelength) is on the order of 10. Strong Mie resonances (l>5 ) are observed in these structures; these resonances lead to peculiar optical phenomena, caused by the interference of high-order multipoles and localization of magnetic fields. Examples of such optical...

We report on the results of numerical simulation based on the Mie theory of the super-resonance effect (the higher-order Fano resonance) for a mesoscale dielectric sphere located in air, since the vacuum environment is an idealization that is almost never encountered in nature. It is first shown using the example of a particle with a refractive ind...

Photonic jets (PJs) are important mesoscale optical phenomena arising from electromagnetic waves interacting with dielectric particles with sizes around several to several tens wavelengths (~2–40 􀀁). It generates a narrow, high-intensity beam at the shadowside of the ‘particle lenses’ made from microspheres, cylinders (fibers), cubes, disks and oth...

Optical energy flow inside a dielectric microsphere exposed to an optical wave is usually codirected with its wave vector. At the same time, if the optical field in a microparticle is in resonance with a high-quality spatial eigenmode, referred to as the whispering-gallery mode (WGM), at least two regions of reverse energy flow emerge in the illumi...

Представлены результаты численного моделирования на основе теории Ми эффекта суперрезонанса для диэлектрической сферы с низким показателем преломления. Впервые показано, что не только ранее изученные слабодиссипативные мезоразмерные сферы из материала со “средним” (около 1.5) и высоким (более 2) показателем преломления, но и с низким (около 1.3) по...

Super-resonance for a dielectric sphere with a low refractive index has been numerically simulated within the Mie theory. It has been shown for the first time that not only previously studied weakly dissipative mesoscale spheres made of materials with "moderate" (about 1.5) and high (above 2) refractive indices but also spheres with low (about 1.3)...

This workshop is devoted to mesoscale structures and devices with building blocks which are large enough to support internal resonances (such as whispering gallery modes in microspheres or localized surface plasmon resonances in metallic nanoparticles), but at the same time small enough, so that geometrical optics cannot be applied for studying the...

Broadband light illumination of a mesoscale dielectric sphere makes it possible to reveal new effects that associated with super resonance mode. These include the possibility of generating high-order Fano resonance cascades. The quality factor has the order Q=10^7. Super-resonance-enabled subdiffraction fields localization by mesoscale dielectric s...

Some new unusual physical phenomena and effects associated with dielectric mesoscale particles with typical Mie size parameter around 10 were studied and have been discovered during the last decade. There are: optical nanovortices; anapoles; photonic nanojets and terajets as in transmission as in reflection modes; structured fields in the form of p...

Subwavelength field localization based on dielectric mesoscale particle with single and blind nanohole array," ABSTRACT Some new unusual physical phenomena and effects associated with dielectric mesoscale particles with Mie size parameter near 10 were studied and have been discovered during the last decade. In this paper, we propose nanoholes struc...

The optical spin torque (OST) exerted on a dielectric Rayleigh spherical particle by photonic hook is investigated in the framework of dipole approximation. Optical spin torque is a type of optical torque that causes a particle to rotate around its center of mass. I.V. Minin and O.V.Minin discovered the photonic hook phenomenon in 2015 (Patent of R...

Optical resonance of the internal field of a dielectric microparticle occurs when the frequency of the incident light wave is tuned to the frequency of one of the particle spatial eigenmodes and leads to a sharp increase in the intensity and localization of the field near the surface with the formation of annular-periodic structures in the form of...

Recently, we showed that dielectric mesoscale spheres support super-resonance effect, i.e. high-order Mie resonance modes with giant field enhancement. The presence of the surrounding medium leads to a significant influence in the intensity of the electric and magnetic fields in the particle. In this paper, we show that this effect can be used for...

Some new unusual physical phenomena and effects associated with dielectric mesoscale particles with Mie size parameter near 10 were studied and have been discovered during the last decade. There are: photonic nanojets; terajets as in transmission as in reflection modes; structured fields in the form of photonic hooks and loops; optical nanovortices...

Optical energy flow inside a dielectric microsphere exposed to an optical wave is usually codirected with its wave vector. At the same time, if the optical field in a microparticle is in resonance with a high-quality spatial eigenmode, referred to as the whispering-gallery mode (WGM), at least two regions of reverse energy flow emerge in the illumi...

Recently, we showed that dielectric mesoscale spheres could support so-called super-resonance effect, i.e. high-order Mie resonance modes with giant field localization and enhancement. Due to the presence of the surrounding medium leads to a significant influence in the intensity of the field in the particle, based on Mie theory we show for the fir...

Dielectric mesoscale spheres have aroused strong interest because of their potential to localize light at deep subwavelength volume and to yield extremal internal magnetic and/or electric field enhancements. Recently, we showed that such particle could support high-order Mie resonance modes with giant field localization and enhancement. Optimizing...

At optical frequencies due to the small value of the magnetic permeability of natural materials, the magnetic effects are week. To this end, the natural dielectric materials are unemployable for practical magnetic applications in optics. We have shown that it is possible to induce the intense magnetic hot spots in a Janus dielectric mesoscale parti...

Optical energy flow inside a dielectric microsphere is usually co-directed with the optical wave vector. At the same time, if the optical field in a microsphere is in resonance with one of the high-quality spatial eigenmodes (whispering-gallery modes— WGMs), a region of reverse energy flow emerges in the shadow hemisphere. This area is of considera...

Some new unusual physical phenomena and effects associated with dielectric mesoscale particles with Mie size parameter near 10 were studied and have been discovered during the last decade. In this paper, we propose nanoholes structured wavelength-scaled dielectric cubic particle with refractive index near two, where the array of nanoholes can act a...

Photonic hook is a high-intensity, bent light focus with a proportional curvature to the wavelength of the incident light. Based on this unique light-bending phenomenon, a novel nearfield photonic switch by means of a right-trapezoid dielectric Janus particle-lens embedded in the core of a planar waveguide is proposed for switching the photonic sig...

Optical whispering-gallery mode (WGM) resonators retain increased interest as a key element in various high-resolution sensing and spectroscopic devices in modern optoelectronic, optofluidic and Lab-on-chip technologies. As a theoretical proof-of-concept, we present a new miniature pressure sensor based on coupled WGMs optically excited in a dielec...

In this Letter, we propose a new, to the best of our knowledge, proof-of-concept of optical nano-tweezers based on a pair of dielectric rectangular structures that are capable of generating a finite-volume in-plane optical capsule. Finite-difference time-domain simulations of light spatial distributions and optical trapping forces of a gold nanopar...

We show that electric field on the plane surface of truncated sphere or cylinders (so called Janus particles) have sharp resonances versus the depth of removed segment of a sphere or cylinder. These resonances are related to the excited whispering gallery waves caused by truncation. It is a new mechanism of the field localization. Optimization of t...

During the last decade, new unusual phenomena in studies on the optics of dielectric mesoscale particles of arbitrary three-dimensional shape and gratings with Mie size parameter q ~ 10 have been discovered. The report provides an overview of these phenomena. The presence of a number of interesting applications indicates that a new promising direct...

In this article, we study the optical force exerted on nanorods. In recent years, the capture of micro-nanoparticles has been a frontier topic in optics. A Photonic Jet (PJ) is an emerging subwavelength beam with excellent application prospects. This paper studies the optical force exerted by photonic jets generated by a plane wave illuminating a G...

Fourier diffraction theorem can rapidly predict scattering characteristics of scatterers. This paper theoretically proposes Orbital Angular Momentum (OAM) to simplify the reference library in the underwater Fourier diffraction theorem. An acoustic metasurface is designed to replace the traditional phased array, meanwhile the underwater defect detec...

Optical energy flow inside a dielectric microsphere is usually codirected with the optical wavevector. At the same time, if the optical field in a microsphere is in resonance with one of the high-quality spatial eigenmodes (whispering-gallery modes - WGMs), a region of reverse energy flow emerges in the shadow hemisphere. This area is of considerab...

It is shown that the image contrast in the air when using a microscope based on dielectric microparticles with a size of the order of wavelength can be significantly enhanced with the help microparticles that provide the formation of the radiation localisation region at an angle to the direction of radiation incidence (at an angle to the optical ax...

The results of numerical simulation based on the Mie theory of the effect of superresonance (high-order Fano resonance) for a mesoscale dielectric sphere immersed in air are presented, since the environment in the form of a vacuum is an idealization that is almost never realized in nature. Using the example of a particle with a refractive index of...