O.A. Shevchenko
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View article: Challenges for Airport Infrastructure to the Current Demands of Sustainability
Challenges for Airport Infrastructure to the Current Demands of Sustainability Open
This study deals with the current challenges within the aviation infrastructure linked with environmental pollution from carbon emissions and qualifying aviation’s adverse environmental impact. Hydrogen, as one of the most promising altern…
View article: Point-like plasma-limited high-temperature terahertz laser discharge
Point-like plasma-limited high-temperature terahertz laser discharge Open
Various methods for limiting the plasma volume made it possible to produce a continuous point-like high-temperature terahertz discharge at the Novosibirsk free-electron laser (NovoFEL). When a krypton-nitrogen jet was injected into the foc…
View article: Features of the breakdown in heavy noble gases under the action of Novosibirsk free electron laser radiation
Features of the breakdown in heavy noble gases under the action of Novosibirsk free electron laser radiation Open
The results of experimental studies on the breakdown of noble gases (argon and krypton) by terahertz radiation from the Novosibirsk free electron laser (NovoFEL) are presented. For the first time, the breakdown thresholds of noble gases by…
View article: The Development of Energy-Recovery Linacs
The Development of Energy-Recovery Linacs Open
Energy-recovery linacs (ERLs) have been emphasised by the recent (2020) update of the European Strategy for Particle Physics as one of the most promising technologies for the accelerator base of future high-energy physics. The current pape…
View article: TERAHERTZ PHOTONICS AND SPECTROSCOPY ON NOVOSIBIRSK FREE ELECTRON LASER
TERAHERTZ PHOTONICS AND SPECTROSCOPY ON NOVOSIBIRSK FREE ELECTRON LASER Open
A review of experiments in the field of photonics and plasmonics, recently performed with the Novosibirsk free electron laser (NovoFEL) is given. Parameters of NovoFEL radiation and user workstations are described. Considerable attention w…
View article: Technical and software improvements of the EPR spectroscopy endstation at the NovoFEL facility: Status 2020
Technical and software improvements of the EPR spectroscopy endstation at the NovoFEL facility: Status 2020 Open
The X-band Electron Paramagnetic Resonance (EPR) spectroscopy endstation at the Novosibirsk Free Electron Laser (NovoFEL) facility is capable for steady-state (CW) EPR and time-resolved (TR) continuous wave EPR experiments. Recently severa…
View article: The Novosibirsk free electron laser facility
The Novosibirsk free electron laser facility Open
The Novosibirsk FEL facility includes three FELs operating in the terahertz, far-, and mid- infrared spectral ranges. It has rather long history, but its potential has not been fully revealed so far. The first FEL of this facility has been…
View article: Electron outcoupling experiments at the NovoFEL facility
Electron outcoupling experiments at the NovoFEL facility Open
An electron outcoupling scheme was proposed for the high power FELs with optical cavities to avoid the power limitation because of overheating of the reflecting mirrors. This can be realized if the major part of radiation power is emitted …
View article: The Control System for the Magnet Power Supplies of Microtron-Recuperator for Novosibirsk Free Electron Laser
The Control System for the Magnet Power Supplies of Microtron-Recuperator for Novosibirsk Free Electron Laser Open
Free electron laser based on multi-turn microtron-recuperator is currently operates at Novosibirsk. Whole facility is a coherent radiation source with ability of wavelength tuning in adequately wide range. The main parameters of radiation …
View article: Radiation stability and hyperfine mode structure of the terahertz NovoFEL
Radiation stability and hyperfine mode structure of the terahertz NovoFEL Open
The hyperfine spectral structure of radiation−laser modes of the Novosibirsk terahertz free electron laser (NovoFEL) has been measured in two its main operating regimes: resonance unstable regime with maximum output power and stabilized re…
View article: Electronic Modulation of THz Radiation at NovoFEL: Technical Aspects and Possible Applications
Electronic Modulation of THz Radiation at NovoFEL: Technical Aspects and Possible Applications Open
The Novosibirsk Free Electron Laser (NovoFEL) facility is able to produce high-power tunable terahertz (THz) laser radiation in quasi-continuous mode. The ability to control/shape this THz radiation is required in a number of user experime…
View article: First Step Towards Larger DNA-Based Assemblies of Fluorescent Silver Nanoclusters: Template Design and Detailed Characterization of Optical Properties
First Step Towards Larger DNA-Based Assemblies of Fluorescent Silver Nanoclusters: Template Design and Detailed Characterization of Optical Properties Open
Besides being a passive carrier of genetic information, DNA can also serve as an architecture template for the synthesis of novel fluorescent nanomaterials that are arranged in a highly organized network of functional entities such as fluo…
View article: Fast Magnetic Measurements Of 8.6 m Undulator
Fast Magnetic Measurements Of 8.6 m Undulator Open
The design of the large-aperture variable-period undulator (VPU) developed for the Novosibirsk free electron laser (FEL) is shortly described. High amplitude of on-axis field is achieved due to the arc shape of the magnet blocks and poles …
View article: Publisher’s Note: “Continuous point-like high-temperature laser discharge produced by terahertz free electron laser” [AIP Advances 7, 095123 (2017)]
Publisher’s Note: “Continuous point-like high-temperature laser discharge produced by terahertz free electron laser” [AIP Advances 7, 095123 (2017)] Open
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View article: Continuous point-like high-temperature laser discharge produced by terahertz free electron laser
Continuous point-like high-temperature laser discharge produced by terahertz free electron laser Open
A continuous point-like laser discharge of record high temperature has been produced in argon at atmospheric pressure with focusing of the radiation of the Novosibirsk terahertz free electron laser (NovoFEL). According to spectral measurem…
View article: Damages of aviation constructions made of composite materials
Damages of aviation constructions made of composite materials Open
Considered are the causes and character of development of damages typical for majority of composite plastic materials compared to those made of metals. Made is classification of damages caused by mechanical impact to polymer composite mate…
View article: Modeling and designing of variable-period and variable-pole-number undulator
Modeling and designing of variable-period and variable-pole-number undulator Open
The concept of permanent-magnet variable-period undulator (VPU) was proposed several years ago and has found few implementations so far. The VPUs have some advantages as compared with conventional undulators, e.g., a wider range of radiati…
View article: Formation of Nanosized Metal Hydrosols under the Influence of Novosibirsk Terahertz free Electron Laser Radiation
Formation of Nanosized Metal Hydrosols under the Influence of Novosibirsk Terahertz free Electron Laser Radiation Open
The present report describes a new phenomenon - short-term exposure of water with focused terahertz radiation of free electron laser leads to the formation of nanoparticle suspension (hydrosol). Composition of the particles formed correspo…
View article: The Novosibirsk Free Electron Laser – Unique Source of Terahertz and Infrared Coherent Radiation
The Novosibirsk Free Electron Laser – Unique Source of Terahertz and Infrared Coherent Radiation Open
The high-power free electron laser (FEL) facility NovoFEL has been created at Budker INP. Its wavelength can be tuned over a wide range in terahertz and infrared spectrum regions. This FEL uses a multi-turn energy recovery linac with five …
View article: Electron Beam Stability in the Energy Recovery Linac for the Lithographic free Electron Laser
Electron Beam Stability in the Energy Recovery Linac for the Lithographic free Electron Laser Open
According to microelectronic production leaders the lithography based on the free electron laser (FEL) could become the main technology for the elements mass production with scale to 5 nm in the nearest future. One of the main problem is t…
View article: Influence of Novosibirsk Terahertz free Electron Laser Radiation on the Morphology of Chicken Hepatocytes
Influence of Novosibirsk Terahertz free Electron Laser Radiation on the Morphology of Chicken Hepatocytes Open
The present report examines the impact of terahertz radiation of Novosibirsk free electron laser on the state of membrane and morphology of hepatocytes and erythrocytes in vitro. The aim of this work is a detailed study of the effects of t…
View article: First Terahertz-range Experiments on Pump – Probe Setup at Novosibirsk free Electron Laser
First Terahertz-range Experiments on Pump – Probe Setup at Novosibirsk free Electron Laser Open
A single-color pump-probe system has been commissioned at the Novosibirsk free electron laser. The laser emits a tunable monochromatic terahertz radiation. To prove the proper system operation, we investigated the time-resolved absorption …
View article: Novosibirsk Free Electron Laser as a User Facility
Novosibirsk Free Electron Laser as a User Facility Open
The Novosibirsk free electron laser is the first multi-turn energy-recovery linear accelerator with three separate laser systems (the terahertz, far-infrared and mid-infrared ones). The facility is well equipped with optical elements and i…