Ultrasonic investigation of phononic Penrose crystals
Ultrasonic investigation of phononic Penrose crystals
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声子彭罗斯晶体的超声研究
DOI：
10.1002/pssc.200405398
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
W. Steurer
中科院分区：
文献类型：
--
作者：
Daniel Sutter;W. Steurer
本文报道了二维声子准晶的超声实验研究。这些安排遵循彭罗斯瓷砖与不同的装饰。透射光谱显示没有间隙，表明系统中的带隙，然而，发现不同的安排的特征下降。考虑了三种镶嵌。其中两个具有相同的单位瓦片（相同的短程顺序），其中两个具有相同的排列（相同的长程顺序）。为了研究局域排列对整个结构光谱性质的贡献，研究了声子准晶的几种簇模和矩形截面。（© 2004 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆）
This article reports on experimental ultrasound studies of two-dimensional phononic quasicrystals consisting of steel rods submerged in water. The arrangements follow Penrose tilings with different decorations. Transmission spectra reveal no gaps indicating band gaps in the system, however, characteristic dips were found for the different arrangements. Three tilings were considered. Two of them have the same unit-tiles (same short range order), two of them the same arrangement (same long range order). In order to investigate the contributions of local arrangements to the spectral properties of the whole structure, several cluster motifs and rectangular subsections of the phononic quasicrystals were studied. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)