Theoretical demonstration of the hybrid focusing points of sonic crystal flat lenses and possible applications |
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| Authors: | Serkan Alagoz Baris Baykant Alagoz |
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| Affiliation: | [1]Department of Physics, Inonu University, Center Campus, Malatya [2]Department of Electric-Electronics, Inonu University, Center Campus, Malatya |
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| 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. |
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| Keywords: | negative refraction sonic crystal metamaterials wave focusing acoustic flat lens |
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