Search Results - "Tolbanov, Oleg"
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Low-temperature transport of charge carriers in InGaN/GaN multiple quantum well light-emitting diodes
Published in Physica status solidi. A, Applications and materials science (01-05-2015)“…The results of experimental investigation of forward current‐voltage characteristics of InGaN/GaN multiple quantum well light‐emitting diodes are presented. A…”
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Characterization of Chromium Compensated GaAs Sensors with the Charge-Integrating JUNGFRAU Readout Chip by Means of a Highly Collimated Pencil Beam
Published in Sensors (Basel, Switzerland) (23-02-2021)“…Chromium compensated GaAs or GaAs:Cr sensors provided by the Tomsk State University (Russia) were characterized using the low noise, charge integrating readout…”
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Optical Pump–Terahertz Probe Study of HR GaAs:Cr and SI GaAs:EL2 Structures with Long Charge Carrier Lifetimes
Published in Photonics (01-12-2021)“…The time dynamics of nonequilibrium charge carrier relaxation processes in SI GaAs:EL2 (semi-insulating gallium arsenide compensated with EL2 centers) and HR…”
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The Mechanism of Superfast Switching of Avalanche -Diodes Based on GaAs Doped With Cr and Fe
Published in IEEE transactions on electron devices (01-08-2018)“…The results of theoretical and experimental investigation of charge carrier transport in avalanche S-diodes based on <inline-formula> <tex-math…”
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Performance of a Medipix3RX Spectroscopic Pixel Detector With a High Resistivity Gallium Arsenide Sensor
Published in IEEE transactions on medical imaging (01-03-2015)“…High resistivity gallium arsenide is considered a suitable sensor material for spectroscopic X-ray imaging detectors. These sensors typically have thicknesses…”
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Photoluminescence and terahertz generation in InGaN/GaN multiple quantum well light-emitting diode heterostructures under laser excitation
Published in Physica Status Solidi. B: Basic Solid State Physics (01-05-2015)“…In this paper the results of experiments on terahertz generation from nitride light‐emitting diode heterostructures under two‐photon excitation by femtosecond…”
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Characterisation of a GaAs(Cr) Medipix2 hybrid pixel detector
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-05-2011)“…A semi-insulating GaAs(Cr) sensor of 300 μm thickness with a bulk resistivity of 10 9 Ω cm and no guard ring structures has been bump bonded to a Medipix2…”
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Spectral X-ray Detectors Based on Multi-Element Chromium Compensated Gallium Arsenide Sensors and Application Specific Integrated Circuits: : Keynote Paper Devoted 75th Anniversary of the Transistor
Published in 2022 International Siberian Conference on Control and Communications (SIBCON) (17-11-2022)“…The paper presents results of R&D in the field of X-ray spectral imaging detectors based on chromium-compensated gallium arsenide pixel sensors…”
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Conference Proceeding -
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Optical Pump - THz Probe Study of SI-GaAs:Cr with Long Charge Carrier Lifetime
Published in 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (01-06-2019)“…SI-GaAs:Cr is a material for ionizing radiation detectors [1], in which, on the contrary to materials for THz devices [2], a long charge carrier lifetime, at…”
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Conference Proceeding -
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X-ray based methods for 3D characterization of charge collection and homogeneity of sensors with the use of Timepix chip
Published in 2011 IEEE Nuclear Science Symposium Conference Record (01-10-2011)“…Timepix is a universal readout chip for pixel detectors which can be connected to various semiconductor sensors. The device has a 256×256 matrix of square…”
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Conference Proceeding -
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Single-wall carbon nanotubes oriented by gas flow at synthesis by aerosol CVD method as terahertz polarizers
Published in 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01-09-2016)“…Single-wall carbon nanotubes were synthesized by aerosol CVD method. Simplified technique for obtaining oriented carbon nanotubes was used. The technique is…”
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Conference Proceeding -
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Terahertz emission from InGaN/GaN multiple quantum well light-emitting diode heterostructures under two-photon excitation
Published in 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01-09-2014)“…Series of experiments on terahertz generation from InGaN/GaN light-emitting diode heterostructures at one- and two-photon excitation by femtosecond laser…”
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Conference Proceeding -
13
THz waveguide with a spit ring resonators layer
Published in 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01-09-2014)“…We use subwavelength metal rigs to control THz transmission through a planar dielectric waveguide. In this case magnetic field has maximal projection on the…”
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Conference Proceeding -
14
GaAs:Cr X-ray pixel detectors
Published in 2011 International Siberian Conference on Control and Communications (SIBCON) (01-09-2011)“…Results of investigation of quantum count mode gallium arsenide pixel detectors are demonstrated. It was shown that at room temperature energy resolution of…”
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Terahertz generation in GaSe0.71S0.29 and GaSe crystals via eee- and eoo-type optical rectification
Published in 2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves (01-09-2012)“…Using experimental and model refractive indices of GaSe and GaSe 0.71 S 0.29 in terahertz range, phase-matching angles for eoo- and eee-type optical…”
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Conference Proceeding -
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The research of characteristics of multichannel GaAs detectors
Published in 2011 International Siberian Conference on Control and Communications (SIBCON) (01-09-2011)“…In this paper the results of multichannel GaAs detectors testing in integral mode are presented. It is shown that for x-ray quanta at the energy range 40-75…”
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Conference Proceeding -
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Efficient terahertz generation in GaSe via eee-interaction type
Published in 2011 International Conference on Infrared, Millimeter, and Terahertz Waves (01-10-2011)“…Using the measured and modeled dispersion properties of GaSe an efficient terahertz generation via optical rectification of femtosecond laser pulses in the…”
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Conference Proceeding