A5061375884- Spectroscopy Techniques in Biomedical and Chemical Research
- Drilling and Well Engineering
- Spectroscopy and Chemometric Analyses
- Metal-Organic Frameworks: Synthesis and Applications
- Optical Coatings and Gratings
- Photonic and Optical Devices
- Semiconductor Quantum Structures and Devices
- Oil and Gas Production Techniques
- Silicon and Solar Cell Technologies
- Nanofabrication and Lithography Techniques
- Advanced Signal Processing Techniques
- Semiconductor materials and interfaces
- Infrared Thermography in Medicine
- Material Properties and Applications
- Semiconductor Lasers and Optical Devices
- Geotechnical and Geomechanical Engineering
- Thermal Regulation in Medicine
- Solid-state spectroscopy and crystallography
- Ultrasound and Hyperthermia Applications
- Chalcogenide Semiconductor Thin Films
- Nanocluster Synthesis and Applications
- Spectroscopy and Laser Applications
- Supramolecular Chemistry and Complexes
- Advanced Materials and Semiconductor Technologies
- Photoacoustic and Ultrasonic Imaging
Peoples' Friendship University of Russia
2024
St Petersburg University
2024
Istinye University
2024
Technische Universität Berlin
2022-2023
Instituto de Óptica "Daza de Valdés"
2021
The University of Texas at Dallas
2009-2019
Saint Petersburg Academic University
2018
Hydrogen bonds impact many material properties due to the bond directionality and collective strength. For them exist, atoms connected hydrogen should possess high electronegativity, distance between interacting be less than their van der Waals radii, there a charge transfer them. In hybrid perovskites, of is ascribed several phenomena. Among are effect passivation at surface, structural stability mixed cation compounds, instability FAPbI3, ferroelectric behavior. this paper, we applied...
Pyrometry is widely used in science, medicine, and industry to measure the surface temperature of objects a non-contact way. IR fibers are an ideal solution for flexible delivery thermal radiation emitted from inside complex structure like internal organs human body. Silver halide polycrystalline infrared (PIR) transparent spectral range 3 – 18 µm, matching perfectly with spectra black body temperatures ranging 20°C 200°C. These non-toxic allow small bending radii. They could become critical...
Abstract A fiber probe has been developed that enables simultaneous acquisition of mid-infrared (MIR) and Raman spectra in the region 3100–2600 cm −1 . Multimodal measurement is based on a proposed ZrO 2 crystal design at tip an attenuated total reflection (ATR) probe. Mid-infrared ATR are obtained through pair chalcogenide infrared (CIR) fibers mounted base crystal. The both excitation weak signal from portion sample front using additional silica located plane perpendicular to CIR fibers....
Silver halide polycrystalline infrared fibers (PIR) have unique properties such as excellent transmittance in the spectral range from 3 to 17 µm, while also being highly flexible, non-toxic, and non-hygroscopic. They are used industry medicine for CO 2 -laser power delivery, flexible imaging, remote process spectroscopy. While PIR possess a quite low attenuation (0.1-0.5 dB/m) 8-12 µm range, their total is limited by significant Fresnel reflections at fiber end faces due high refractive...
The results are presented for injection microlasers with InAs/InGaAs self-organized quantum dot active region grown on a GaAs substrate. Lasing wavelength is around 1.26...1.28 µm. It demonstrated that the use of ring-shaped p-contact microdisk lasers provides lowering threshold current as compared to conventional round-shaped contact topology. Both spectral characteristics and thermal resistance preserved, whereas series electrical slightly increases.
Abstract The article deals with the phase method of direction finding, based on dependence difference signals received by antennas, as well correlation signal processing in which will assess possibility finding “Spectrum-RG” spacecraft, derived neighborhood L 2 Lagrange point located at a distance one and half million kilometers from Earth.
Biological tissue is complex substance which characterization demands combination of several spectroscopic techniques. Spectroscopy enables real-time label-free chemical and structural evaluation samples for medical diagnostics in situ vivo. Fiber-optic probes provide flexible, sterilizable, compact solutions simultaneously analyzing with modalities. Modern fiber spectroscopy seamlessly covers entire wavelength range from 0.3µm silica fibers to 20µm chalcogenide, silver halide PIR fibers,...
Fiber optic spectroscopy label-free composition analysis makes it the best tool for reaction monitoring in Process Analytical Technologies (PAT) and chemical of bio tissues medical diagnostics in-citu in-vivo. Biological samples modern chemicals are complex substances, which requires combining several spectroscopic techniques. optics probes provide compact, flexible, robust, cost-effective solutions to merge different optical modalities one sample at same point. This spatial synchronization...