Abstract
The deformation-loss of waveguides is a critical element that hinders the application range.Crystal waveguides have been studied for the construction of anti-deformation waveguides.However,the bandwidth of crystal waveguides is strictly reliant on the crystal lattice's periodicity.In case the deformation is extreme,and the crystal lattice is drastically altered,the bandwidth will be significantly diminished,and transmission loss will surge.Here,we report an elastic waveguide design based on the disordered hyperuniform(DH)distribution with as low as about 20％bandwidth loss under deformations with an average strain of approximately 10％.In contrast,the phononic crystal elastic waveguide(PCEWG)exhibits an average reduction of 50％for the same degree of deformation.This is demonstrated through simulations under four different deformation conditions:first-order bending,second-order bending,compressing and stretching.A theoretical explanation is provided through the calculation of structural factors.Choosing soft materials as the matrix and explaining the mechanism through elastic waves,we present a promising avenue for communication through the human body.
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