A5016150789- Microwave and Dielectric Measurement Techniques
- Photonic and Optical Devices
- Acoustic Wave Resonator Technologies
- Microwave Engineering and Waveguides
- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Terahertz technology and applications
- Electromagnetic wave absorption materials
- Soil Moisture and Remote Sensing
- Gyrotron and Vacuum Electronics Research
- Diamond and Carbon-based Materials Research
- Silicon Nanostructures and Photoluminescence
- biodegradable polymer synthesis and properties
- Agriculture, Plant Science, Crop Management
- Electromagnetic Compatibility and Measurements
- Transition Metal Oxide Nanomaterials
- Material Properties and Applications
- Shape Memory Alloy Transformations
- Powdery Mildew Fungal Diseases
- Semiconductor materials and devices
- Atmospheric and Environmental Gas Dynamics
- Magneto-Optical Properties and Applications
- Optical and Acousto-Optic Technologies
- Magnetic and Electromagnetic Effects
- Optical Wireless Communication Technologies
Institute of Radio-Engineering and Electronics
2012-2023
Microwave absorption properties are studied for flexible materials based on periodic gratings made of carbon nanotube (CNT) threads. Resonant is observed by free space measurements in the frequency range from 26.5 to 40 GHz. Materials comprised CNT thread with different periods, a metal backplate, and an intermediate dielectric layer exhibit significant reflection losses (less than −45 dB). The shifts peaks spectra caused changes thickness rotations samples indicate high sensitivity obtained results.
Dielectric properties of biocompatible and biodegradable poly-ε-caprolone (PCL) polylactide (PLA), as well their nanocomposites, are measured in the millimeter (MM) wave band. It is found that complex dielectric permittivity PCL its nanocomposites increases with temperature interval from 40 to 50â, while PLA 85 90â. The samples carbon nanotubes prepared melamine show much lower absorption compared same without melamine. latter fact can be attributed formation clusters these samples.
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation D. S. Kalenov, V. Meriakri, M. P. Parkhomenko, Sh. Zhou; Dielectric properties of biocompatible biodegradable polycaprolone polylactide their nanocomposites in the millimeter wave band. AIP Conf. Proc. 11 July 2012; 1459 (1): 77–79. https://doi.org/10.1063/1.4738403 Download citation file: Ris (Zotero)...
Recently great interest in the field of nano-optic is attracted to nano-antennas both basic and applied research. Nano-antennas are represented by metallic nanoparticles holes thin films with arrays holes. The usual have fixed functionality, but it will be very interesting get tunability controlled external field. Materials phase transitions candidates for development tuneable nanoantennas. In this report metal-dielectric transition VO2 micro- submicron particles, studied experimentally...
Electromagnetic waves generated by the Heusler alloy Ni2.14Mn0.81GaFe0.05at structural phase transition was detected in frequency range of 2832 GHz.Inuence kinetics transitions on nature sample millimeter radiation studied as well.It has been observed that contribution intrinsic increases with increasing heating/cooling rate.The possible mechanisms and theory such eect is discussed.It shown maximum intensity should be emitted direction perpendicular to movement interphase boundary.
Daily, seasonal and annual measurements of methane background variations were carried out in the northeast Moscow Region, both by active remote lidar operating at a wavelength ~ 1650 nm with powerful radiation source based on Raman amplifier, passive method, using solar as broadband light source. Observations urbanized areas near city, an environmentally friendly area low economic level activity. Over 4 years observations, concentration increased from 2.0 ppm to 2.24 ppm, 1.75 1.95 ppm. A...
The results of complex investigation dielectric parameters at millimeter wavelengths range and defects are presented for the diamond prepared by DC arc plasma jet (APJ) technique. Also a comparison with conventional CVD diamonds grown microwave chemical vapor deposition (MPCVD) technique was made. It found that loss in APJ increases frequency while it decreases MPCVD diamonds. corresponds to mechanism lattice induced disorder diamond. activation energies conductivity energy spectrum defect...