A5084404580- Gold and Silver Nanoparticles Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- 2D Materials and Applications
- Advanced biosensing and bioanalysis techniques
- MXene and MAX Phase Materials
- Metamaterials and Metasurfaces Applications
- Near-Field Optical Microscopy
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Nonlinear Optical Materials Studies
- Graphene research and applications
- Laser-Ablation Synthesis of Nanoparticles
- Spectroscopy Techniques in Biomedical and Chemical Research
- Photonic Crystals and Applications
- Optical Coatings and Gratings
- Chalcogenide Semiconductor Thin Films
- Boron and Carbon Nanomaterials Research
- Protein Interaction Studies and Fluorescence Analysis
- Biosensors and Analytical Detection
- Crystallization and Solubility Studies
- Advanced Fluorescence Microscopy Techniques
- Advanced X-ray Imaging Techniques
- Microstructure and mechanical properties
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
Moscow Institute of Physics and Technology
2018-2025
Institute of Physics and Technology
2021-2024
Moscow Power Engineering Institute
2019-2023
Moscow Aviation Institute
2019-2021
Moscow State Technical University of Civil Aviation
2019-2021
University of Southern Denmark
2009-2020
Yuriy Fedkovych Chernivtsi National University
1999-2020
Moscow Engineering Physics Institute
2020
Odense Municipality
2017
CIC biomaGUNE
2013-2015
Strong resonant light scattering by individual spherical Si nanoparticles is experimentally demonstrated, revealing pronounced resonances associated with the excitation of magnetic and electric modes in these nanoparticles. It shown that low-frequency resonance corresponds to dipole excitation. Due high permittivity, observed visible spectral range for diameters ∼200 nm, thereby opening a way realization isotropic optical metamaterials strong responses region.
Excitation of localized and delocalized surface plasmon resonances can be used for turning excellent reflectors visible light, such as gold silver, into efficient absorbers, whose wavelength, polarization or angular bandwidths are however necessarily limited owing to the resonant nature excitations involved. Nonresonant absorption has so far been achieved by using combined nano- micro-structural modifications with composite materials involving metal nanoparticles embedded in dielectric...
Large optical anisotropy observed in a broad spectral range is of paramount importance for efficient light manipulation countless devices. Although giant was recently the mid-infrared wavelength range, visible and near-infrared intervals, problem remains acute with highest reported birefringence values 0.8 BaTiS3 h-BN crystals. This inspired an intensive search among natural artificial materials. Here, we demonstrate that layered transition metal dichalcogenides (TMDCs) provide answer to...
Nanoparticles are widely used in various fields of science and technology as well everyday life. In particular, gold silver nanoparticles display unique optical properties that render them extremely attractive for applications. this review, we focus on the use noble metal plasmonic nanosensors with high sensitivity, even reaching single molecule detection. Sensors based plasmon resonance shifts, surface-enhanced Raman scattering fluorescence, will be considered work.
The translation of a technology from the laboratory into real world should meet demand economic viability and operational simplicity. Inspired by recent advances in conductive ink pens for electronic devices on paper, we present “pen‐on‐paper” approach making surface enhanced Raman scattering (SERS) substrates. Through this approach, no professional training is required to create SERS arrays paper using an ordinary fountain pen filled with plasmonic inks comprising metal nanoparticles...
Abstract Layered semiconductors such as transition metal dichalcogenides (TMDs) offer endless possibilities for designing modern photonic and optoelectronic components. However, their optical engineering is still a challenging task owing to multiple obstacles, including the absence of rapid, contactless, reliable method obtain dielectric function well evaluate in situ changes constants exciton binding energies. Here, we present an advanced approach based on ellipsometry measurements...
Atomically thin transition metal dichalcogenides (TMDCs) present a promising platform for numerous photonic applications due to excitonic spectral features, possibility tune their constants by external gating, doping, or light, and mechanical stability. Utilization of such materials sensing optical modulation purposes would require clever design, as itself the 2D can offer only small phase delay - consequence atomic thickness. To address this issue, we combine films semiconductors which...
The integration of nanoparticle superstructures into daily life applications faces major challenges including the simplification self-assembly process, reduced cost, and scalability. It is, however, often difficult to improve on one aspect without losing another. We present in this paper a benchtop method that allows patterning macroscopic substrate with gold supercrystals one-step process. parallelization, patterned substrates can be made high-throughput. variety building blocks crystalline...
Anapole states associated with the resonant suppression of electric-dipole scattering exhibit minimized extinction and maximized storage electromagnetic energy inside a particle. Using numerical simulations, optical spectroscopy, amplitude-phase near-field mapping silicon dielectric disks, we demonstrate high-order anapole in near-infrared wavelength range (900–1700 nm). We develop procedure for unambiguously identifying by monitoring normal component electric experimentally detect first two...
Abstract Selective study of the electron transport chain components in living mitochondria is essential for fundamental biophysical research and development new medical diagnostic methods. However, many important details inter- intramembrane mitochondrial processes have remained shadow due to lack non-invasive techniques. Here we suggest a novel label-free approach based on surface-enhanced Raman spectroscopy (SERS) monitor redox state conformation cytochrome c mitochondria. We demonstrate...
Abstract Thanks to a high refractive index, giant optical anisotropy, and pronounced excitonic response, bulk transition metal dichalcogenides (TMDCs) have recently been discovered be an ideal foundation for post‐silicon photonics. The inversion symmetry of TMDCs, on the other hand, prevents their use in nonlinear‐optical processes such as second‐harmonic generation (SHG). To overcome this obstacle broaden application scope MoS 2 nanodisks are engineered couple Mie resonances with...
Recent developments in the area of resonant dielectric nanostructures have created attractive opportunities for concentrating and manipulating light at nanoscale establishment new exciting field all-dielectric nanophotonics. Transition metal dichalcogenides (TMDCs) with nanopatterned surfaces are especially promising these tasks. Still, fabrication structures requires sophisticated lithographic processes, drastically complicating application prospects. To bridge this gap broaden scope TMDC...
Early-stage uric acid (UA) abnormality detection is crucial for a healthy human. With the evolution of nanoscience, metal oxide nanostructure-based sensors have become potential candidate health monitoring due to their low-cost, easy-to-handle, and portability. Herein, we demonstrate synthesis puffy balls-like cobalt nanostructure using hydrothermal method utilize them modify working electrode non-enzymatic electrochemical sensor fabrication. The was utilized UA determination cyclic...
Abstract The emergence of van der Waals (vdW) materials resulted in the discovery their high optical, mechanical, and electronic anisotropic properties, immediately enabling countless novel phenomena applications. Such success inspired an intensive search for highest possible properties among vdW materials. Furthermore, identification most promising huge family is a challenging quest requiring innovative approaches. Here, we suggest easy-to-use method such survey based on crystallographic...
We demonstrate that the phenomenon of extraordinary optical transmission (EOT) through perforated metal films can be further boosted up by utilizing nanofocusing radiation in tapered slits. For one-dimensional arrays slits optically thick suspended gold films, we show maximum at resonance is achieved for taper angles range 7-10 degrees increasing significantly comparison with straight Transmission spectroscopy fabricated 500 and 700 nm period a 180 film on glass substrate demonstrates...
Gold nanorod supercrystals have been widely employed for the detection of relevant bioanalytes with limits ranging from nano- to picomolar levels, confirming promising nature these structures biosensing. Even though a relationship between height supercrystal (i.e., number stacked layers) and enhancement factor has proposed, no systematic study reported. In order tackle this problem, we prepared gold varying numbers layers analyzed them extensively by atomic force microscopy, electron...
Gold nanostars display strong electromagnetic field enhancement at their tips, and tip plasmon resonances can be tuned within the visible near-infrared, which has been applied toward plasmonic molecular sensing. However, sensitivity further increased by linking gold to other nanoparticles thereby inducing creation of hot spots. We report controlled formation core–satellite assemblies comprising a central nanostar with spheres adsorbed tips via Raman active linkers. Surface-enhanced...
Coloration by surface nanostructuring has attracted a great deal of attention the virtue making use environment-friendly recyclable materials and generating nonbleaching colors. Recently, it was found possible to delegate task color printing laser postprocessing that modifies carefully designed fabricated nanostructures. Here we take next crucial step in development structural dispensing with preformed nanostructures using instead near-percolation metal films atop dielectric-metal...
Abstract Sub‐10 nm continuous metal films are promising candidates for flexible and transparent nanophotonics optoelectronic applications. In this article, it is demonstrated that monolayer MoS 2 a perspective adhesion layer the deposition of conductive gold with thickness only 3–4 nm. Optical properties ultrathin deposited on 2D grown by chemical vapor investigated spectroscopic ellipsometry over wide wavelength range (300–3300 nm). Results show optical losses in increase decreasing due to...
Graphene is a promising building block material for developing novel photonic and optoelectronic devices. Here, we report comprehensive experimental study of chemical-vapor deposited (CVD) monolayer graphene’s optical properties on three different substrates ultraviolet, visible, near-infrared spectral ranges (from 240 to 1000 nm). Importantly, our ellipsometric measurements are free from the assumptions additional nanometer-thick layers water or other media. This issue critical practical...
Real-time and high-performance monitoring of trace carbon dioxide (CO2) has become a necessity due to its substantial impact on the global climate, human health, indoor occupancy, crop productivity. Two-dimensional materials such as transition metal dichalcogenides (TMDs) have gained significant interest in gas sensing applications owing their intrinsically high surface-to-volume ratio. However, research been limited prominent TMDs WS2 MoS2. Specifically, chemiresistive performance titanium...
Abstract Nature is abundant in material platforms with anisotropic permittivities arising from symmetry reduction that feature a variety of extraordinary optical effects. Principal axes are essential characteristics for these effects define light-matter interaction. Their orientation – an orthogonal Cartesian basis diagonalizes the permittivity tensor, often assumed stationary. Here, we show low-symmetry triclinic crystalline structure van der Waals rhenium disulfide and diselenide...
Abstract Chirality is one of the most mysterious symmetry transformations. Very readily broken in biological systems, it practically absent naturally occurring inorganic materials and very challenging to create artificially. Chiral optical wavefronts are often used for identification, control, discrimination left‐ right‐handed other molecules. Thus, crucially important capable chiral interaction with light, which would allow assign arbitrary properties a light field. This study utilizes van...