1. Universal coupling between the photonics and phononics in a 3D graphene sponge
- Author
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Shalaby, M., Vicario, C., Giorgianni, F., Gaspar, M. A., Craievich, P., Chen, Y., Kan, B., Lupi, S., and Hauri, C. P.
- Subjects
Condensed Matter - Materials Science ,Materials Science (cond-mat.mtrl-sci) ,FOS: Physical sciences ,Physics - Applied Physics ,Applied Physics (physics.app-ph) - Abstract
Photon-phonon coupling holds strong potential for sound and temperature control with light, opening new horizons in detector technology, remote sound generation and signal broadcasting. Here, we report on a novel stereoscopic ultralight converter based on a three dimensional graphene structure 3G-sponge, which exhibits very high absorption, near-to-air density, low inertia, and negligible effective heat capacity. We studied the heat and sound generation under the excitation of electromagnetic waves. 3G-sponge shows exceptional photon to heat and sound transduction efficiency over an enormous frequency range from MHz to PHz. As an application, we present an audio receiver based on a 3G-sponge amplitude demodulation. Our results will lead to a wide range of applications from light-controlled sound sources to broadband high-frequency graphene electronics.
- Published
- 2019
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