| 声波在声子晶体禁带边缘处的动态演化 |
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| 引用本文： | 郭建中,张婷,赵琳瑶,李永放.声波在声子晶体禁带边缘处的动态演化[J].科学通报,2013,58(1):63-68. |
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| 作者姓名： | 郭建中 张婷 赵琳瑶 李永放 |
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| 作者单位： | 陕西师范大学物理学与信息技术学院, 陕西省超声学重点实验室, 西安 710062 |
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| 基金项目： | 国家自然科学基金(10974128, 11274217)资助 |
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| 摘 要： | 利用两个相同声子晶体构成的腔长可变声波谐振腔, 研究了声波在声子晶体导带和禁带交汇处的动态演化规律. 理论分析和实验结果表明, 禁带边缘处透射声波的频谱分布随着谐振腔腔长的增加呈周期性振荡变化, 在禁带边缘处的隧穿过程更容易实现.
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| 关 键 词： | 声波谐振腔 能量耦合 隧穿效应 |
| 收稿时间： | 2012-05-30 |
Acoustic wave dynamic evolvement in stopband edge of phonons superlattices |
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| GUO JianZhong,ZHANG Ting,ZHAO LinYao,LI YongFang.Acoustic wave dynamic evolvement in stopband edge of phonons superlattices[J].Chinese Science Bulletin,2013,58(1):63-68. |
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| Authors: | GUO JianZhong ZHANG Ting ZHAO LinYao LI YongFang |
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| Institution: | Key Laboratory for Ultrasonic of Shaanxi Province, School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, China |
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| Abstract: | The acoustic wave dynamic evolvement in the stopband edge is investigated theoretically and experimentally using the acoustic-phonon cavity made of two identical acoustic-phonon superlattices. The theoretical and experimental results show that the acoustic wave is periodic oscillations with the increase of the acoustic-phonon cavity, and the tunneling effect of the acoustic wave is easy in the stopband edge of phonons superlattices. |
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| Keywords: | acoustic-phonon cavity phonons superlattices acoustic wave tunneling effect |
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