90 citations · 220 across the 13 of their papers we have counts for
13 papers
Multivalued dispersion equation for plasmon-surface optical phonon coupling in graphene/polar substrate system
S. M. Kukhtaruk, V. A. Kochelap
Dispersion equations are a common paradigm of collective excitation physics. However, in some systems, dispersion equations contain multivalued functions and their solutions are am…
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…
Giant photoelasticity of polaritons for detection of coherent phonons in a superlattice with quantum sensitivity
Michal Kobecki, Alexey V. Scherbakov, Serhii M. Kukhtaruk +7
The functionality of phonon-based quantum devices largely depends on the efficiency of interaction of phonons with other excitations. For phonon frequencies above 20 GHz, generatio…
Protected Long-Distance Guiding of Hypersound Underneath a Nano-Corrugated Surface
Dmytro D. Yaremkevich, Alexey V. Scherbakov, Serhii M. Kukhtaruk +13
Within a new paradigm for communications on the nanoscale, high-frequency surface acoustic waves are becoming effective data carrier and encoder. On-chip communications require aco…
Modified rigorous coupled-wave analysis for grating-based plasmonic structures with delta-thin conductive channel. Far- and near-field study
Yurii M. Lyaschuk, Serhii M. Kukhtaruk, Vytautas Janonis +1
The modified rigorous coupled-wave analysis technique is developed to describe the optical characteristics of the plasmonic structures with the grating-gated delta-thin conductive…
Transition magnon modes in thin ferromagnetic nanogratings
S. M. Kukhtaruk, A. W. Rushforth, F. Godejohann +2
This work presents micromagnetic simulations in ferromagnetic nanogratings for the full range of directions of an applied in-plane external magnetic field. We focus on the modifica…
Resonant thermal energy transfer to magnons in a ferromagnetic nanolayer
Michal Kobecki, Alexey V. Scherbakov, Tetiana L. Linnik +7
Energy harvesting is a modern concept which makes dissipated heat useful by transferring thermal energy to other excitations. Most of the existing principles for energy harvesting…
Magnon polaron formed by selectively coupled coherent magnon and phonon modes of a surface patterned ferromagnet
Felix Godejohann, Alexey V. Scherbakov, Serhii M. Kukhtaruk +8
Strong coupling between two quanta of different excitations leads to the formation of a hybridized state which paves a way for exploiting new degrees of freedom to control phenomen…
Generation of a localized microwave magnetic field by coherent phonons in a ferromagnetic nanograting
A. S. Salasyuk, A. V. Rudkovskaya, A. P. Danilov +11
A high-amplitude microwave magnetic field localized at the nanoscale is a desirable tool for various applications within the rapidly developing field of nanomagnetism. Here, we dri…
Spatially dispersive dynamical response of hot carriers in doped graphene
S. M. Kukhtaruk, V. A. Kochelap, V. N. Sokolov +1
We study theoretically wave-vector and frequency dispersion of the complex dynamic conductivity tensor (DCT), , of doped monolayer graphene under a strong dc…
Semiclassical analysis of intraband collective excitations in a two-dimensional electron gas with Dirac spectrum
S. M. Kukhtaruk, V. A. Kochelap
Solving the initial value problem for semiclassical equations that describe two-dimensional electrons with the Dirac spectrum we found that collective excitations of the electrons…
THz response of nonequilibrium electrons of highly doped graphene on a polar substrate
S. M. Kukhtaruk
High-frequency response of a system with drifting electrons in a highly doped graphene and surface polar optical phonons of a polar substrate is considered. For this interacting sy…
Interaction between an Isotropic Nanoparticle and Drifting Electrons in a Quantum Well
V. A. Kochelap, S. M. Kukhtaruk
A hybrid system composed of an isotropic nanoparticle and a semiconductor heterostructure with a quantum well has been considered. The nanoparticle is supposed to be polarizable in…