4 papers
General Method for Evaluation of Stop-Bands of Periodic Structures with Symmetric Unit Cells
Alexander Hvatov, Mariia Krasikova, Aleksandra Pavliuk +1
The mirror symmetries of a periodic unit cell are exploited to decompose the standing-wave eigenproblem at the high-symmetry vertices of the Brillouin zone into four independent su…
Applicability of Radiowave Anechoic Chambers for Acoustic Free-Field Measurements on the Example of the Chamber at ITMO University
Farid Bikmukhametov, Ksenia Razrezova, Roman Smolnitsky +3
Acoustic anechoic chambers allow free-field measurements required for the verification of effects under investigation and for the characterization of developing devices. However, t…
Ventilated noise-insulating metamaterials inspired by sonic black holes
Farid Bikmukhametov, Lana Glazko, Yaroslav Muravev +4
Acoustic black holes represent a special class of metastructures allowing efficient absorption based on the slow sound principle. The decrease of the wave speed is associated with…
Acoustic Bound States in the Continuum in Coupled Helmholtz Resonators
Mariia Krasikova, Felix Kronowetter, Sergey Krasikov +6
Resonant states underlie a variety of metastructures that exhibit remarkable capabilities for effective control of acoustic waves at subwavelength scales. The development of metama…