%0 Journal Article
%T Theoretical and experimental research on the second harmonic of focused ultrasound in layered biological media<br>聚焦超声波在层状生物媒质中的二次谐波声场的理论与实验研究
%A Xue Hong-Hui
%A Liu Xiao-Zhou
%A Gong Xiu-Fen
%A Zhang Dong
%A <br>薛洪惠
%A 刘晓宙
%A 龚秀芬
%A 章 东
%J 物理学报
%D 2005
%I 
%X Based on the Khokhlov-Zabolotkaya-Kuznetsov (KZK) equation in frequency-domain, a theoretical model of focused ultrasonic waves in the layered biological medium with consideration of the sound absorption, nonlinearity, boundary of the media and the diffraction of the source is presented. The propagation of focused ultrasonic waves for fundamental and second harmonic in the multi-layered biological media are numerically studied and compared with the experimental results. Good agreement of the theory with the measurement shows that this approach can effectively describe the second harmonic sound field in multi-layered biological media.
%K focused ultrasound
%K multi-layered biological media
%K second harmonic<br>聚焦超声波，
%K 层状生物媒质，
%K 二次谐波
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=5D36973777C60697&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=708DD6B15D2464E8&sid=B555D5A5B8E2299F&eid=3875E1B7628D9911&journal_id=1000-3290&journal_name=物理学报&referenced_num=3&reference_num=12