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According to the heat conduction theory and effective medium theory, we fabricated a six-layer cylinder heat diffusion cloak by mixing heat conduction materials. We measured the time-dependant heat wave at the iso-temperature lines and the heat flux lines with a self-made heat wave device. The experiment results show that the iso-temperature lines are parallel outside the outer circle, the heat fluxes are parallel and equal outside the outer circle, and the heat fluxes in the inner circle are much smaller than those outside the outer circle, namely, the heat fluxes are guided outside the cloaking region.

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We derive an analytic expression for the Goos-Hänchen shift experienced by an acoustic wave that is totally reflected at the interface between a negative-refractive-index acoustic medium and a positive-index acoustic medium. Upon obtaining the condition necessary for phonon-trapping in a three-layer heterostructure, we introduce a design for an "acoustic clepsydra" by using a suitable acoustic heterostructure.