6E-5 High Frequency Surface Waves Scattered in Microstructured Phononic Crystals
6E-5 High Frequency Surface Waves Scattered in Microstructured Phononic Crystals
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6E-5 微结构声子晶体中散射的高频表面波
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
S. Laude
中科院分区：
文献类型：
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作者：
D. Profunser;O. Wright;O. Matsuda;U. Lang;K. Abdelkrim;S. Benchabane;S. Laude
使用超快光学技术，宽带表面声波包跟踪一维和二维声子晶体在两个维度上的真实的时间在频率高达~1 GHz。通过时空傅立叶变换从数据中获得声学频带结构。我们发现阻带泄漏纵波和瑞利波
Using an ultrafast optical technique, broadband surface acoustic wave packets are tracked on 1D and 2D phononic crystals in two dimensions in real time at frequencies up to ~1 GHz. The acoustic band structure is obtained from the data by means of a spatiotemporal Fourier transform. We find stop bands for both leaky longitudinal and Rayleigh waves