A5038379653- Ultrasonics and Acoustic Wave Propagation
- Laser Material Processing Techniques
- Gyrotron and Vacuum Electronics Research
- Electromagnetic Effects on Materials
- Acoustic Wave Resonator Technologies
- Microwave Engineering and Waveguides
- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Pulsed Power Technology Applications
- Advanced Materials Characterization Techniques
- Laser-Ablation Synthesis of Nanoparticles
- Terahertz technology and applications
- Material Properties and Applications
- Plasma Applications and Diagnostics
- Geotechnical and Geomechanical Engineering
- Laser Design and Applications
- Geophysical Methods and Applications
- Ion-surface interactions and analysis
- Metal Alloys Wear and Properties
- High Entropy Alloys Studies
- Advanced Machining and Optimization Techniques
- Laser-induced spectroscopy and plasma
- Material Properties and Failure Mechanisms
- Building materials and conservation
- Surface Treatment and Residual Stress
Yuri Gagarin State Technical University of Saratov
2013-2024
Institute of Radio-Engineering and Electronics
2021
Goethe University Frankfurt
2021
Saratov State University
2021
Russian Academy of Sciences
2013-2020
A.V. Shubnikov Institute of Crystallography
2014-2020
Federal Scientific Research Centre Crystallography and Photonics
2020
Siberian State Industrial University
2013
We report the results of design, simulation, fabrication, and cold-test measurements millimeter-band 2D planar microstrip slow-wave structures (SWSs) on dielectric substrates. Such have a high factor, which allows for low-voltage operation reduction in size weight device. A low-cost flexible fabrication technology based magnetron sputtering subsequent laser ablation has been developed is reported paper. Microstrip meander-line SWS circuits at V-, W-, D-bands fabricated characterized. The...
Sources of millimeter and submillimeter (terahertz) band radiation are very important in modern society due to their broad application from telecommunication non-destructive evaluation chemical analysis. In this work, we present a review technological approaches for fabrication RF structures μVEDs. Technological the microfabrication planar slow-wave (SWS) on dielectric substrates operating with sheet electron beam considered. Such SWSs attractive simplicity structure, compact dimensions, low...
Design and preliminary numerical simulations of D-band planar microstrip meander-line slow wave structure for lowvoltage tubes with sheet electron beam were carried out. An original approach based on magnetron sputtering laser ablation methods was utilized microfarication. application nanosecond picosecond microfabrication (110-170 GHz) considered. We have verified our structures by using different CNC precision machines operating values pulse duration (100 ns, 8 4 ns 10 ps). Samples...
Paper describes the method of creating sharp emitting tips on surface a field- emission cathode. The needle-shaped structures with high aspect ratio glass-carbon plate are produced by means nanosecond laser micromachining. operations scribing, milling and cleaning were applied for fabrication single- multi-tip field-emission special technique rough fine provided smooth apexes. As result we obtained up to 600. tests cathodes showed that density current shorter technological route production...
Glass-phase materials, such as glass-carbon, ceramics etc., are a wide class of substances applied in electronic industry. These materials often need special technologies for their processing. Unlike traditional methods micromachining, focused ultrashort laser pulses sufficiently high fluence makes it possible not only to avoid the majority side effects, including temperature, but also create qualitatively new technology "hard materials". When using ultrafast lasers micromachining processes...
Metal-porous cathode is an electrovacuum EHF device, providing a high density of emission current. The emitting surface the device usually obtained by ion etching. layer made porous sponge refractory metal, tungsten. Through pores alkaline earth metals and their oxides are delivered to surface. One most important parameters uniformity emission, depending on regularity location pores. We describe method laser modification metal-porous surface, instead traditional preferences etching pores,...
Е.Л.Сурменко 1 , О.Н.Щербинина 2 И.А.Попов Т.Н.Соколова Д.А.Бессонов Учебно-исследовательская лаборатория лазерной техники и технологии, Саратовский государственный технический университет имени Ю.А.Гагарина, Саратов, Россия О ПРИМЕНЕНИИ МЕТОДА LIBS ДЛЯ ОЦЕНКИ ЭФФЕКТИВНОСТИ ВНЕДРЕНИЯ ТАЛЛИЯ В МЕДНЫЕ ЭЛЕКТРОДЫ ПРИ ХИМИЧЕСКОМ НАНЕСЕНИИ ПОКРЫТИЙ Обсуждаются результаты применения метода (laser induced breakdown spectroscopy) для анализа элементного состава таллийсодержащих сверхпроводящих
Two different approaches were described for laser structuring of the glass-carbon fieldemission cathodes -linear scanning and an overlapping blind holes technique.It was showed that technique has advantage over similar methods by increasing packing density micropeaks.High emission characteristics achieved through use progressive structuring, providing micropeaks order 10 5 -10 6 cm -2 .