A5001237405- Advanced Memory and Neural Computing
- Perovskite Materials and Applications
- Neural Networks and Reservoir Computing
- Photoreceptor and optogenetics research
- Conducting polymers and applications
- Optical properties and cooling technologies in crystalline materials
- Antenna Design and Analysis
- Nuclear materials and radiation effects
- Metamaterials and Metasurfaces Applications
- Geophysical and Geoelectrical Methods
- Mechanical stress and fatigue analysis
- Quantum Dots Synthesis And Properties
- Vibration and Dynamic Analysis
- Advanced Antenna and Metasurface Technologies
- Luminescence Properties of Advanced Materials
- Electrostatics and Colloid Interactions
- Plasma Diagnostics and Applications
- Advanced Fiber Laser Technologies
- Glass properties and applications
ITMO University
2023-2024
Large language models for artificial intelligence applications require energy-efficient computing. Neuromorphic photonics has the potential to reach significantly lower energy consumption in comparison with classical electronics. A recently proposed memlumor device uses photoluminescence output that carries information about its excitation history via excited state dynamics of material. Solution-processed metal halide perovskites can be used as efficient memlumors. We show trapping...
Abstract Neuromorphic architectures, expanding the limits of computing from conventional data processing and storage to advanced cognition, learning, in-memory computing, impose restrictions on materials that should operate fast, energy efficiently, highly endurant. Here we report architecture based metal-organic framework (MOF) single crystal with a light control. We demonstrate MOF inherent memristive behavior (for storage) changes nonlinearly its electric response when irradiated by...
Abstract The interaction of light with solids can be dramatically enhanced owing to electron‐photon momentum matching. This mechanism manifests when scattering from nanometer‐sized clusters including a specific case self‐assembled nanostructures that form long‐range translational order but local disorder (crystal‐liquid duality). In this paper, new strategy based on both cases for the light‐matter‐interaction enhancement in direct bandgap semiconductor – lead halide perovskite CsPbBr 3 by...
Neuromorphic computing promises to transform the current paradigm of traditional towards Non-Von Neumann dynamic energy-efficient problem solving. Thus, memory devices capable simultaneously performing nonlinear operations (volatile) similar neurons and also storing information (non-volatile) alike brain synapses are in great demand. To satisfy these demands, a neuromorphic platform has possess intrinsic complexity reflected built-in diversity its physical operation mechanisms. Herein, we...
The interaction of light with solids can be dramatically enhanced owing to electron-photon momentum matching. This mechanism is driven by either quantum confinement or long-range structural correlations in media crystal-liquid duality. In this paper, we address a new strategy based on both phenomena for enhancement the light-matter direct bandgap semiconductor - lead halide perovskite CsPbBr$_3$ using electric pulse-driven disorder. disordered (glassy) state allows generation confined...
We show that a slab of wire medium composed thin parallel metallic wires can naturally support bound states in the continuum (BICs) formed an unusual way. The revealed BICs appear due to strong spatial dispersion making possible propagation longitudinal plasma-like waves and TEM polarized modes with flat band. symmetry-protected (at-$\Gamma$) are polarization mismatch between transversal plane surrounding space, while accidental (off-$\Gamma$) as result Friedrich-Wintgen destructive...
We extensively study screening in anisotropic artificial media formed by arrays of parallel metal wires both analytically and experimentally. Our findings show that the electrostatic potential distribution produced probe charge is spherically symmetrical vicinity source. also derive a boundary condition for wire medium confirm its validity Despite finite dimensions arrays, field symmetry near remains unaffected, but local maximum at boundary. The depth determined geometrical parameters...
The double wire medium (DWM) is a 3d metamaterial consisting of two orthogonal sets metallic wires. These media support propagating modes in wide frequency region below the plasma frequency. First mode has hyperbolic isofrequency contour wires plane, second one diagonal plane which to plane. Both can be used create planar gathering lens but only first been studied before. Our full-wave numerical simulations, ray-tracing simulations and experimental measurements have shown that works...
All-inorganic mixed-halide perovskites are promising materials for a number of photonic and optoelectronic applications. Decent progress has been made in the field synthesis their high-quality nano- microcrystals exhibiting bright excitonic photoluminescence laser generation tunable wide spectral range. However, engineering high-performance devices demonstrating long-term operational stability is challenging because non-balanced charge carrier injection, Joule heating, corrosion metal...
The transition to smart wearable and flexible optoelectronic devices communicating with each other performing neuromorphic computing at the edge is a big goal in next-generation optoelectronics. These should perform their regular tasks supported by energy-efficient in-memory calculations. Here, we study response of CsPbBr$_3$ halide-perovskite single crystal fabricated on polymer substrate integrated single-walled carbon nanotube thin film electrodes lateral geometry. We show both...
Optoelectrically-Driven Halide-Perovskite Single-Crystal Memristors with Biorealistic ResponseAlexandr Marunchenko a, b, Ivan Matchenya Anton Khanas c, Roman Podgornyi Daniil Shirkin Sergey Anoshkin Alexey Yulin Albert Nasibulin d, Dmitry Krasnikov Anatoly Pushkarev Scheblykin Andrey Zenkevich ca Chemical Physics and NanoLund, Department of Chemistry, Lund University, Box 124, 22100, Swedenb ITMO St. Petersburg, Russia, 49 Kronverkskii Avenue, Russian Federationc Moscow Institute Technology...