Theoretical Study of LSAWs Propagation Characteristics by Finite Difference Time Domain
Finite Difference Time Domain (FDTD) is introduced into theoretical study of propagation characteristics of laser generated surface acoustic wave (LSAW),to facilitate complex structure modelling and to further take advantage of its parallel computation for higher computation efficiency.The algorithms convergence is checked by its calculation result of time harmonic field.FDTD computation model for LSAW propagating in structure of isotropic film deposited on Si (100) substrate is established.And the FDTD algorithms correctness and fitness for calculating LSAWs propagation characteristics are verified by fitting the calculated dispersion curve with that obtained in LSAW experiment.
FDTD surface acoustic wave laser ultrasonic detection Youngs modulus
Mao-Sen Bai Dante J.Dorantes-Gonzalez Xing Fu Yan-Ning Li Zhi Chen Sen Wu Xiao-Tang Hu
Sate Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin, Ch School of Mechanical Engineering, Tianjin University, Tianjin, China
国际会议
天津
英文
559-562
2012-10-16（万方平台首次上网日期，不代表论文的发表时间）