A5073639988- Crystallography and Radiation Phenomena
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Advanced X-ray Imaging Techniques
- Photonic Crystals and Applications
- Terahertz technology and applications
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Metamaterials and Metasurfaces Applications
- Laser-Plasma Interactions and Diagnostics
- Near-Field Optical Microscopy
- Particle accelerators and beam dynamics
- Photonic and Optical Devices
- Laser Design and Applications
- Plasmonic and Surface Plasmon Research
- Electromagnetic Scattering and Analysis
- Particle physics theoretical and experimental studies
- Optical and Acousto-Optic Technologies
- Advanced Antenna and Metasurface Technologies
- Radiation Therapy and Dosimetry
- Intermetallics and Advanced Alloy Properties
- Electron and X-Ray Spectroscopy Techniques
- Advanced materials and composites
- Graphene research and applications
- Pulsed Power Technology Applications
Moscow Power Engineering Institute
2024
Moscow Engineering Physics Institute
2014-2023
Belgorod National Research University
2019-2023
Southern Federal University
2023
ITMO University
2022
Kurchatov Institute
1991-2021
Yuri Gagarin State Technical University of Saratov
2016
Institute of Engineering Physics
2004-2008
V. N. Karazin Kharkiv National University
2001-2002
National Academy of Sciences of Ukraine
2000-2001
Smith-Purcell effect is well known as a source of monochromatic electromagnetic radiation. In this paper we present the generalized theory radiation from periodic beams. The form-factors describing both coherent and incoherent regimes are calculated. characteristics investigated in two practically important frequency ranges, THz X-ray, for modulation profiles, most frequently used practice - train microbunches Gaussian-shaped one, characterized by sinusoidal with an arbitrary depth. On base...
Smith-Purcell radiation is a well-known phenomenon, which provides noninvasive scheme for diagnostics of charged particle beams and used as an effective source electromagnetic waves, e.g., in the orotron, free electron laser, etc. In this paper we develop theory (SPR) little-investigated case arbitrary angles between trajectories rulings grating. The effect conical diffraction arising here changes drastically space distribution radiation. By contrast to only existing approach, described by...
We report the results of experimental and theoretical studies monochromatic coherent terahertz radiation generated by a short relativistic electron bunch interacting with metasurface. The metasurface consists subwavelength metal elements arranged on dielectric substrate. constructed theory explains spectra Smith–Purcell grating transition very high precision. orientational distribution shows fine structure, which, as we suppose, may be due to contribution coupling between metasurface’s elements.
Hollow electron beams are today highly desirable for many applications, but still challenging in view of their detection. In this Letter, we focus on the unique character electromagnetic radiation that relativistic hollow can produce when traveling above a metasurface. We investigate theoretically specific features coherent mode, which provides highest intensity, and show from beam be considerably more intense than conventional solid beam. This solves problem distinguishing between beams....
Diffraction radiation (DR) from an ultrarelativistic particle in the high frequency limit is considered. The distribution of emitted energy over angles and frequencies has been obtained. Both backward DR forward have explored. maximum found to augment with increasing oblique incidence angle.
We construct the first-principles theory for scattering of Coulomb field a fast electron traveling along an array nano- or microparticles. The electron's trajectory is arbitrarily oriented in plane parallel to surface. show that Smith-Purcell radiation accompanying this process results very rich diffraction patterns, which differ dramatically from ones conventional gratings; numerical analysis was made THz frequencies. generalized dispersion relation has been derived; it describes link...
We present a simulat ion platform which serves as an integrated fra mework for mu ltiscale and ltiphysics modeling of Organic Light Emitting Diodes (OLEDs) their co mponents. The is imed at the designers OLEDs with various areas e xpert ise ranging fro m fundamental theory to manufacturing technology. integrates extendable set in-house third-party computational progra ms that are used predict ive OLED parameters important device performance. These tools describe properties atomistic,...
In this work we construct the first-principles theory for near-field resonances arising in system of two different coupled nanoparticles excited by external field. The obtained expressions are valid an arbitrary field; detailed analysis is performed case a fast electron passing by. energy arbitrary, so results both relativistic and nonrelativistic electrons. We have rigorous analytical solution radiation field distribution over angles frequencies. effect interaction between single particles...