Suppression of light propagation in a medium made of randomly arranged dielectric spheres

Abstract

Light propagation in a medium made of densely packed dielectric spheres is investigated by using a rigorous diffraction theory. It is shown that a substantial suppression of the local density of states occurs in spectral domains where the single constituents exhibit Mie resonances. The local density of states decreases exponentially at the pertinent frequencies with a linearly increasing spatial extension of the aggregated spheres. It is shown that a self-sustaining random arrangement of core-shell spheres shows the same fundamental characteristics. Such approach offers a path towards easy to fabricate photonic materials with omnidirectional gaps that may find use in various applications.

5 pages, 4 figures

References in corpus (5)

• Photon Localization in Resonant Media
• Light diffusion and localization in 3D nonlinear disordered media
• Signatures of photon localization
• Manifestation of photonic band structure in small clusters of spherical particles
• Localization of electromagnetic waves in two-dimensional random dielectric systems

Cited by in corpus (7)

• Photonic Band Gaps in 3D Network Structures with Short-range Order
• Photonic Band Gap Effects in Two-dimensional Polycrystalline and Amorphous Structures
• Disorder-immune photonics based on Mie-resonant dielectric metamaterials
• Stealthy and hyperuniform isotropic photonic bandgap structure in 3D
• Signatures of the Anderson localization excited by an optical frequency comb
• 10 dB emission suppression in a structured low index medium
• The limits for complete photonic bandgaps in low-contrast media