Metamaterial control of stimulated Brillouin scattering

Abstract

Using full opto-acoustic numerical simulations, we demonstrate enhancement and suppression of the SBS gain in a metamaterial comprising a subwavelength cubic array of dielectric spheres suspended in a dielectric background material. We develop a general theoretical framework and present several numerical examples using technologically important materials. For As${}_2$S${}_3$ spheres in silicon, we achieve a gain enhancement of more than an order of magnitude compared to pure silicon, and for GaAs spheres in silicon, full suppression is obtained. The gain for As${}_2$S${}_3$ glass can also be strongly suppressed by embedding silica spheres. The constituent terms of the gain coefficient are shown to depend in a complex way on the filling fraction. We find that electrostriction is the dominant effect behind the control of SBS in bulk media.

arXiv comment5 pages, 5 figures

References in corpus (1)

• Stimulated Brillouin Scattering in integrated photonic waveguides: forces, scattering mechanisms and coupled mode analysis

Cited by in corpus (9)

• NumBAT: The integrated, open source Numerical Brillouin Analysis Tool
• On-chip correlation-based Brillouin sensing: design, experiment and simulation
• Suspended mid-infrared waveguides for Stimulated Brillouin Scattering
• Stimulated Brillouin scattering in metamaterials
• Stimulated Brillouin scattering in dispersed graphene
• Enhanced acousto-optic properties in layered media
• Transformation optics simulation method for stimulated Brillouin scattering
• Stimulated Brillouin scattering enhancement in silicon inverse opal waveguides
• Stimulated Brillouin Scattering in layered media: nanoscale enhancement of silicon