Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications

doi:10.1088/1674-1056/22/7/076201

中国物理B ›› 2013, Vol. 22 ›› Issue (7): 76201-076201.doi: 10.1088/1674-1056/22/7/076201

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications

Serkan Alagoz^a, Baris Baykant Alagoz^b

a Department of Physics, Inonu University, Center Campus, Malatya;
b Department of Electric-Electronics, Inonu University, Center Campus, Malatya

收稿日期:2012-12-27 修回日期:2013-02-12 出版日期:2013-06-01 发布日期:2013-06-01

Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications

Serkan Alagoz^a, Baris Baykant Alagoz^b

a Department of Physics, Inonu University, Center Campus, Malatya;
b Department of Electric-Electronics, Inonu University, Center Campus, Malatya

Received:2012-12-27 Revised:2013-02-12 Online:2013-06-01 Published:2013-06-01
Contact: Serkan Alagoz E-mail:serkan.alagoz@inonu.edu.tr

摘要/Abstract

摘要： We demonstrate the hybrid focusing points of sonic crystals for a multi-source array applied to flat sonic crystal lenses. The contributions of different point source couples form hybrid focusing points. Ray-trace analyses are conducted for acoustic flat lenses with multi-source configurations. The finite-difference time-domain (FDTD) simulation of flat lenses with multi-source configurations demonstrates the establishment of pure and hybrid focusing points in a pyramidal constellation. The number of focusing points in the pyramidal constellation depends on the number of point sources. We propose an acoustic device for fine-tuning the location of a far-field hybrid focusing point and discuss its benefits for acoustic energy focusing application.

关键词: negative refraction, sonic crystal metamaterials, wave focusing, acoustic flat lens

Abstract: We demonstrate the hybrid focusing points of sonic crystals for a multi-source array applied to flat sonic crystal lenses. The contributions of different point source couples form hybrid focusing points. Ray-trace analyses are conducted for acoustic flat lenses with multi-source configurations. The finite-difference time-domain (FDTD) simulation of flat lenses with multi-source configurations demonstrates the establishment of pure and hybrid focusing points in a pyramidal constellation. The number of focusing points in the pyramidal constellation depends on the number of point sources. We propose an acoustic device for fine-tuning the location of a far-field hybrid focusing point and discuss its benefits for acoustic energy focusing application.

Key words: negative refraction, sonic crystal metamaterials, wave focusing, acoustic flat lens

中图分类号: (Acoustical properties of solids)

62.65.+k

43.20.El (Reflection, refraction, diffraction of acoustic waves) 43.35.Cg (Ultrasonic velocity, dispersion, scattering, diffraction, and Attenuation in solids; elastic constants)

Serkan Alagoz, Baris Baykant Alagoz. Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications[J]. 中国物理B, 2013, 22(7): 76201-076201.

Serkan Alagoz, Baris Baykant Alagoz. Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications[J]. Chin. Phys. B, 2013, 22(7): 76201-076201.

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Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications

Theoretical demonstration of hybrid focusing points ofsonic crystal flat lenses and possible applications

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