On the Fundamental Mode Love Wave in Devices Incorporating Thick Viscoelastic Layers  

作　　者：刘建生 王立君 何世堂 

机构地区：[1]Institute of Acoustics,Chinese Academy of Sciences

出　　处：《Chinese Physics Letters》2015年第6期100-102,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11104314

摘　　要：A detailed investigation is presented for Love waves （LWs） with thick viscoelastic guiding layers. A theoretical calculation and an experiment are carried out for LW devices incorporating an SU-8 guiding layer, an ST-90° X quartz substrate and two 28-μm periodic interdigital transducers. Both the calculated and the measured results show an increase in propagation velocity when h / λ〉0.05. The measured insertion loss of LWs is consistent with the calculated propagation loss. The insertion loss of bulk waves is also measured and is compared with that of LWs.A detailed investigation is presented for Love waves （LWs） with thick viscoelastic guiding layers. A theoretical calculation and an experiment are carried out for LW devices incorporating an SU-8 guiding layer, an ST-90° X quartz substrate and two 28-μm periodic interdigital transducers. Both the calculated and the measured results show an increase in propagation velocity when h / λ〉0.05. The measured insertion loss of LWs is consistent with the calculated propagation loss. The insertion loss of bulk waves is also measured and is compared with that of LWs.

关 键 词：On the Fundamental Mode Love Wave in Devices Incorporating Thick Viscoelastic Layers 

分 类 号：TB552[理学—物理]