36 citations · 101 across the 13 of their papers we have counts for
13 papers
Plasmonic enhancement of the infrared radiation absorption in an ultrathin InSb layer
Yurii M. Lyaschuk, Vadym V. Korotyeyev, Viacheslav A. Kochelap +1
Indium antimonide (InSb) is a fundamental material for infrared radiation detectors based on interband transitions. Its narrow bandgap enables detection of infrared radiation withi…
Electrical Tuning of Terahertz Plasmonic Crystal Phases
P. Sai, V. V. Korotyeyev, M. Dub +9
We present an extensive study of resonant two-dimensional (2D) plasmon excitations in grating-gated quantum well heterostructures, which enable an electrical control of periodic ch…
Description of the wavevector dispersion of surface plasmon-phonon-polaritons
V. V. Korotyeyev, V. Janonis, I. Kašalynas
We reported here the results of the calculations of wavevector dispersion of oscillations frequencies, , and damping of the surface plasmon phonon polaritons (\mbox…
Nanoscale ballistic diodes made of polar materials for amplification and generation of radiation in 10 THz-range
V. A. Kochelap, V. V. Korotyeyev, Yu. M. Lyashchuk +1
We investigate ultra-high frequency electrical properties of nanoscale -- diodes made of polar semiconductors. The calculations show that the coupling between optical…
Diffusion properties of electrons in GaN crystals subjected to electric and magnetic fields
G. I. Syngayivska, V. V. Korotyeyev, V. A. Kochelap
We studied the diffusion coefficient of hot electrons of GaN crystals in moderate electric (1...10 kV/cm) and magnetic (1...4 T) fields. Two configurations, parallel and crossed fi…
Spatial dispersion of the high-frequency conductivity of two-dimensional electron gas subjected to a high electric field: collisionless case
V. V. Korotyeyev, V. A. Kochelap, S. Danylyuk +1
We present the analysis of high-frequency (dynamic) conductivity with the spatial dispersion, , of two-dimensional electron gas subjected to a high electric field. W…
THz frequency- and wavevector-dependent conductivity of low-density drifting electron gas in GaN. Monte Carlo calculations
G. I. Syngayivska, V. V. Korotyeyev, V. A. Kochelap +1
We report the results of Monte Carlo simulation of electron dynamics in stationary and space- and time-dependent electric fields in compensated GaN samples. We have determined the…
Electric Current and Noise in Long GaN Nanowires in the Space-Charge Limited Transport Regime
V. A. Sydoruk, S. A. Vitusevich, H. Hardtdegen +5
We studied electric current and noise in planar GaN nanowires (NWs). The results obtained at low voltages provide us with estimates of the depletion effects in the NWs. For larger…
Electrical and high-frequency properties of compensated GaN under electron streaming conditions
G. I. Syngayivska, V. V. Korotyeyev
Conditions required for the streaming effect and the optical-phonon transit-time resonance to take place in a compensated bulk GaN are analyzed in detail. Monte Carlo calculations…
High-frequency response of GaN in moderate electric and magnetic fields: Interplay between cyclotron and optical phonon transient time resonances
G. I. Syngayivska, V. V. Korotyeyev, V. A. Kochelap
We have studied the high-frequency properties of the non-equilibrium electron gas in GaN samples subjected to electric and magnetic fields. Spectra of the complex tensor of the dyn…
Wave excitations of drifting two-dimensional electron gas under strong inelastic scattering
V. V. Korotyeyev, V. A. Kochelap, L. Varani
We have analyzed low-temperature behavior of two-dimensional electron gas in polar heterostructures subjected to a high electric field. When the optical phonon emission is the fast…
Interaction of terahertz electromagnetic field with metallic grating: Near-field zone
Yu. M. Lyaschuk, V. V. Korotyeyev
We have developed theory for the interaction of THz radiation with a sub-wavelength metallic grating. The structure of electric fields of the electromagnetic wave under the metalli…
Voltage controlled terahertz transmission through GaN quantum wells
T. Laurent, R. Sharma, J. Torres +13
We report measurements of radiation transmission in the 0.220--0.325 THz frequency domain through GaN quantum wells grown on sapphire substrates at room and low temperatures. A sig…