Measuring bulk and surface acoustic modes in diamond by angle-resolved Brillouin spectroscopy  

作　　者：YaRu Xie ShuLiang Ren YuanFei Gao XueLu Liu PingHeng Tan Jun Zhang 

机构地区：[1]State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China [2]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [3]Beijing Academy of Quantum Information Science,Beijing 100193,China [4]CAS Center of Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2021年第8期78-84,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Basic Research Program of China(Grant Nos. 2016YFA0300804,and 2016YFA0301200);the Beijing Natural Science Foundation (Grant No. JQ18014);the National Natural Science Foundation of China (Grant Nos. 12074371,and 51527901)。

摘　　要：The acoustic modes of diamond are not only of profound significance for studying its thermal conductivity, mechanical properties, and optical properties, but also play a definite role in the performance of high-frequency and high-power acoustic wave devices. Here, we report on the bulk acoustic waves(BAWs) and surface acoustic waves(SAWs) of single-crystal diamond using angle-resolved Brillouin light scattering(BLS) spectroscopy. We identify two high-speed surface skimming bulk waves(SSBW) with acoustic velocities of 1.277×10^(6) and 1.727×10^(6) cm/s, respectively. Furthermore, we obtain the relationship between the velocity of arbitrary BAWs and that of BAWs propagating along the high-symmetric axis at different incident angles. In the community of diamond-based acoustic studies, our results may provide a valuable reference for fundamental research and device engineering.

关 键 词：DIAMOND acoustic waves angle-resolved Brillouin spectroscopy 

分 类 号：TQ163[化学工程—高温制品工业] O657.3[理学—分析化学]