title: Ð¡Ð²Ð¾Ð±Ð¾Ð´Ð½ÑÐµ Ð²Ð¾Ð»Ð½Ñ Ð² ÑÑÐµÐ´Ð°Ñ Ð±ÐµÐ· ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸Ð¸ Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Waves in media without reflection symmetry
Creators: name: Ð Ð°Ð±Ð¾ÑÐ¸Ð½ÑÐºÐ¸Ð¹, ÐÑÑÑÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÑÐµÐ´ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐµ ÑÑÐµÐ´Ñ
Ñ Ð¸ÑÐ°Ð»ÑÐ½ÑÐµ ÑÑÐµÐ´Ñ
Ð³Ð¸ÑÐ¾ÑÑÐ¾Ð¿Ð½ÑÐµ ÑÑÐµÐ´Ñ
Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¼ÐµÑÐ°Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»
Ð°Ð½Ð¾Ð¼Ð°Ð»ÑÐ½Ð¾Ðµ Ð¿ÑÐµÐ»Ð¾Ð¼Ð»ÐµÐ½Ð¸Ðµ
Ð²Ð¾Ð»Ð½Ñ Ð² ÑÑÐµÐ´Ð°Ñ ÐÐ¾ÑÑÐµÑÐ°
reduced media
chiral media
gyrotropic media
acoustic metamaterial
anomalous reflection
waves in Cosserat media

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description: This work is devoted to the study of the wave properties of a special class of acoustic metamaterials â reduced complex chiral media. Special attention is paid to the reduced gyrotropic medium, which demonstrates properties of a double negative acoustic metamaterial.We propose a microstructural model of a 1D reduced gyrotropic medium, which performs 3D motion.We find parameters that qualitatively affect the propagation of transverse waves in reduced gyrotropic media, in particular, influence on the frequency domains of significant absorption and anomalous refraction. Both numerical and analytical studies of the influence of these parameters on the type of dispersion curves have been carried out. The results were verified by means of comparison of the numerical and analytical results and analysis of the limiting case when the gyrotropic medium becomes similar to an isotropic one, whose dispersion relations were found and investigated in other studies. The study also presents two models of 1D chiral media, demonstrating properties of single negative acoustic metamaterials. We find the parameters that affect the width of the bands of significant absorption in these media. We consider all possible variants of mixed wave propagation in these media and propose the conditions of their existence for each case.