Effective parameters of acoustic metamaterials
Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters...
| Published in: | Russian physics journal Vol. 61, № 6. P. 1129-1134 |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000789744 Перейти в каталог НБ ТГУ |
| Summary: | Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility. To distinguish between the forward and backward waves, the wave type identifier is introduced. |
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| Bibliography: | Библиогр.: 23 назв. |
| ISSN: | 1064-8887 |