Super-resolution imaging in multi-broadband of a ten-fold Penrose-type phononic quasi-crystal flat lens

Results in Physics

Jianjun Liu¹  Jianlan Xie¹  Junlong Han²  Exian Liu² 

[1] Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China;;Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education &

关键词: Flat lens;    Super-resolution imaging;    Far-field imaging;    Phononic quasi-crystal;   

DOI  :  

来源: DOAJ

【 摘 要 】

A ten-fold Penrose-type phononic quasi-crystal (PQC) flat lens is constructed in water by steel rods. Super-resolution imaging in multi-broadband of the lens is realized. Results show that there are broad imaging bands on both sides of phononic band gaps (PBGs). In most imaging bands, there are frequency ranges where super-resolution imaging can be achieved, and far-field super-resolution imaging can be realized in specific frequency ranges. The PQC flat lens is expected to be applied to ultrasonic therapy, detecting, imaging, etc.

【 授权许可】

Unknown