J. Zhang, X. Roux, P. Nuño-Ruano, D. Melati, M. Motesinos-Ballester, E. Cassan, D. Marris-Morin, L. Vivien, N. D. LanzillottiKimura, C. Alonso‐Ramos
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Generating X-band phonons in a nanostructured silicon optomechanical cavity
We report on a nanostructured silicon resonator achieving optomechanical coupling between C-band photons and X-band phonons. We experimentally show the generation of 10GHz phonons, with decay rate of 3.49 MHz. This result opens new prospects for high-frequency silicon optomechanics with applications in communications, sensing and quantum-state control.