设计了两个声子晶体线缺陷波导,通过环形谐振腔耦合,构造出声波分插滤波器,可以上传、下载高品质的声波导模.文中采用有限元方法分析声波在平台中的传播,结果表明,采用方柱体为散射体,谐振腔内腔平滑,可以增强谐振腔局域性;适当旋转耦合方柱体,可以增大透射率,当转角30°时透射率最大;利用环形腔体的旋转可以实现对谐振频率的精细调节.这些研究对声波器件的集成设计具有潜在应用.
参考文献
| [1] | 温激鸿;刘耀宗;郁殿龙;王刚;赵宏刚.基于散射单元的声子晶体振动带隙研究[J].人工晶体学报,2004(3):358-362. |
| [2] | Li, Jing;Wu, Fugen;Zhong, Huilin;Yao, Yuanwei;Zhang, Xin.Acoustic beam splitting in two-dimensional phononic crystals using self-collimation effect[J].Journal of Applied Physics,201514(14):144903-1-144903-6. |
| [3] | Qiu CY;Zhang XD;Liu ZY.Far-field imaging of acoustic waves by a two-dimensional sonic crystal[J].Physical review, B. Condensed matter and materials physics,20055(5):4302-1-4302-6-0. |
| [4] | 田亚会;李红浪;袁策;柯亚兵;何世堂.基于二维声子晶体的选频选向加权声波导[J].人工晶体学报,2016(3):604-611. |
| [5] | Junjie Bao;Jun Xiao;Lin Fan;Xiaoxu Li;Yunfei Hai;Tong Zhang;Chunbo Yang.All-optical NOR and NAND gates based on photonic crystal ring resonator[J].Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter,2014:109-112. |
| [6] | Mahmoud Youcef Mahmoud;Ghaouti Bassou;Ahmed Taalbi;Zoheir Mohamed Chekroun.Optical channel drop filters based on photonic crystal ring resonators[J].Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter,20123(3):368-372. |
| [7] | Jia-Hong Sun;Tsung-Tsong Wu.A lamb wave source based on the resonant cavity of phononic-crystal plates[J].IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control,20091(1):121-128. |
| [8] | Hsu, F.-C.;Hsu, J.-C.;Huang, T.-C.;Wang, C.-H.;Chang, P..Reducing support loss in micromechanical ring resonators using phononic band-gap structures[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,201137(37):375101-1-375101-10. |
| [9] | Duan Feng;Dehui Xu;Guoqiang Wu;Bin Xiong;Yuelin Wang.Phononic crystal strip based anchors for reducing anchor loss of micromechanical resonators[J].Journal of Applied Physics,20142(2):024503-1-024503-7. |
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