Stimulated Brillouin scattering in metamaterials

Abstract

We compute the SBS gain for a metamaterial comprising a cubic lattice of dielectric spheres suspended in a background dielectric material. Theoretical methods are presented to calculate the optical, acoustic, and opto-acoustic parameters that describe the SBS properties of the material at long wavelengths. Using the electromagnetic and strain energy densities we accurately characterise the optical and acoustic properties of the metamaterial. From a combination of energy density methods and perturbation theory, we recover the appropriate terms of the photoelastic tensor for the metamaterial. We demonstrate that electrostriction is not necessarily the dominant mechanism in the enhancement and suppression of the SBS gain coefficient in a metamaterial, and that other parameters, such as the Brillouin linewidth, can dominate instead. Examples are presented that exhibit an order of magnitude enhancement in the SBS gain as well as perfect suppression.

arXiv comment11 pages, 14 figures

References in corpus (4)

• Stimulated Brillouin Scattering in integrated photonic waveguides: forces, scattering mechanisms and coupled mode analysis
• Brillouin Scattering Self-Cancellation
• Narrow linewidth Brillouin laser based on chalcogenide photonic chip
• Metamaterial control of stimulated Brillouin scattering

Cited by in corpus (5)

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• Stimulated Brillouin scattering enhancement in silicon inverse opal waveguides
• Stimulated Brillouin Scattering in layered media: nanoscale enhancement of silicon
• Fully-Tensorial Elastic-Wave Mode-Solver in FEniCS for Stimulated Brillouin Scattering Modeling