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More than two decades of sustained development regarding acoustic metamaterials have not only unveiled a wide range of novel acoustic phenomena and provided abundant new mechanisms and methods for sound manipulation, but also introduced a new paradigm for acoustic wave control. In this article, we provide a brief overview of recent advances in acoustic metamaterials, introduce their anomalous acoustic properties and outline how artificially designed acoustic metamaterials enable multidimensional control of sound waves according to specific tasks. Covered topics include wavefront shaping, spatial distribution and directional control of sound energy, time−dependent and orbital angular momentum modulation in acoustic artificial systems. We also showcase the potential of metamaterials to address longstanding challenges in key areas such as noise reduction, room−in sound field control, and acoustic detection. Acoustic metamaterials are currently experiencing rapid development and are accelerating the transition from fundamental research to practical applications. In the future, they are expected to play a pivotal role in diverse areas such as ultrasonic diagnostics and therapy, stealth technology, and intelligent manufacturing.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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