周期性声学栅对声子晶体相空间的调控研究

人工晶体学报, 2016, 45(4): 1088-1093.

1.吉首大学物理与机电工程学院,吉首,416000

2.吉首大学物理与机电工程学院,吉首,416000

3.吉首大学物理与机电工程学院,吉首,416000

4.吉首大学物理与机电工程学院,吉首,416000

基金项目: 湖南省吉首大学校级课题资助项目(14JDY039) 湖南省教育厅科学研究项目(13A077,13B091) 国家自然科学基金(11464012,11304119,11264011,11564012,11564013)

Phase Space Modulation of Sonical Crystal by Periodic Acoustic Grating

基于周期性声学栅修饰的二维声子晶体,本文从理论上计算其能带结构、等频率色散线,详细讨论引入周期性声学栅后晶体相空间的各种改变.计算结果表明:周期性声学栅的引入能够灵活调制声子晶体的色散关系,更加有效地利用晶体中存在的各种模式,由此可以实现一些较为新颖的声波人工操控.

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