9 citations · 20 across the 8 of their papers we have counts for
8 papers
acoustotreams -- A Python package for acoustic-wave scattering based on the -matrix method
Nikita Ustimenko, Carsten Rockstuhl
The transition-matrix (-matrix) method has established itself as a prominent technique for computing the scattering response from spatially localized objects. The suitability be…
Broken-symmetry phenomena enhanced by quasi-bound states in the continuum
Jan David Fischbach, Lukas Rebholz, Nikita Ustimenko +3
Many of the most powerful and elegant models in physics are grounded in symmetries. In electrodynamics, for example, geometric symmetries govern the observable effects of light-mat…
Singular value decomposition to describe bound states in the continuum in periodic metasurfaces
Nikita Ustimenko, Ivan Fernandez-Corbaton, Carsten Rockstuhl
Understanding how bound states in the continuum (BICs) emerge in periodic metasurfaces is essential for the controlled design of high-Q resonances and their systematic manipulation…
Ultrasonic metamaterial at MHz frequencies using microstructured glass
Oscar Demeulenaere, Nikita Ustimenko, Athanasios G. Athanassiadis +3
Acoustic metamaterials enhance traditional material properties through microstructure engineering, providing new opportunities to shape sound fields in applications ranging from bi…
Lattice-induced sound trapping in biperiodic metasurfaces of acoustic resonators
Nikita Ustimenko, Andrey B. Evlyukhin, Vicky Kyrimi +2
A referential example of a physical system that supports bound states in the continuum (BICs) with an infinite quality factor ( factor) is a metasurface of discrete scatterers (…
Optimal multipole center for subwavelength acoustic scatterers
Nikita Ustimenko, Carsten Rockstuhl, Alexander V. Kildishev
The multipole expansion is a powerful framework for analyzing how subwavelength-size objects scatter waves in optics or acoustics. The calculation of multipole moments traditionall…
Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures
Nikita A. Ustimenko, Danil F. Kornovan, Kseniia V. Baryshnikova +2
Exciting optical effects such as polarization control, imaging, and holography were demonstrated at the nanoscale using the complex and irregular structures of nanoparticles with t…
Multipole optimization of light focusing by silicon nanosphere structures
Nikita A. Ustimenko, Kseniia V. Baryshnikova, Roman V. Melnikov +4
We investigate the applicability of the coupled multipole model and its modification in the framework of the zero-order Born approximation for modeling of light focusing by finite-…