A 3D graphene sponge (3G-sponge) demonstrates exceptional photon-to-heat and photon-to-sound transduction efficiency over MHz to PHz frequencies due to its high absorption, low density, low inertia, and negligible heat capacity, with a demonstrated audio receiver application.
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Universal coupling between the photonics and phononics in a 3D graphene sponge
A 3D graphene sponge (3G-sponge) demonstrates exceptional photon-to-heat and photon-to-sound transduction efficiency over MHz to PHz frequencies due to its high absorption, low density, low inertia, and negligible heat capacity, with a demonstrated audio receiver application.