Strongly Nonlinear Acousto-Optical Modulation in a Periodic Array of Resonant Nanophotonic Cavities

Abderrahmane Belkhir (1) , Vincent Laude (2) , Mahmoud Addouche (2) , Sarah Benchabane Gaiffe (2) , Abdelkrim Khelif (2) , Fadi Baida (2)

1 LPCQ - Laboratoire de Physique et Chimie Quantique [Tizi-Ouzou]
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)

We investigate theoretically acousto-optical coupling in a planar array of nanoscale asymmetric photonic cavities defined by metal ridges supported by a piezoelectric substrate. The metal ridges form an interdigital transducer that excites resonant elastic vibrations. A strongly nonlinear modulation of optical transmission, of optomechanical origin, is predicted.

Domaines: Optique [physics.optics]; Acoustique [physics.class-ph]; Matériaux; Micro et nanotechnologies/Microélectronique

Abderrahmane Belkhir, Vincent Laude, Mahmoud Addouche, Sarah Benchabane Gaiffe, Abdelkrim Khelif, et al.. Strongly Nonlinear Acousto-Optical Modulation in a Periodic Array of Resonant Nanophotonic Cavities. International Conference on Phononic Crystals/Metamaterials, Phonon Transport/Coupling and Topological Phononics, Jun 2017, Changsha, China. ⟨hal-02300694⟩