Plasmon Assisted Transparency in Metal--Dielectric Microspheres

Abstract

We present a theoretical analysis of light scattering from a layered metal-dielectric microsphere. The system consists of two spherical resonators, coupled through concentric embedding. Solving for the modes of this system we find that near an avoided crossing the scattering cross section is dramatically suppressed, exhibiting a tunable optical transparency. Similar to electromagnetically induced transparency, this phenomenon is associated with a large group delay, which in our system is manifest as flat azimuthal dispersion.

Submitted to Optics Letters, Sep 13th

References in corpus (3)

• Achieving transparency with plasmonic coatings
• Plasmonic bandgaps and Trapped Plasmons on Nanostructured Metal Surfaces
• Enhanced surface plasmon resonance absorption in metal-dielectric-metal layered microspheres

Cited by in corpus (8)

• Electromagnetic energy in multilayered spherical particles
• Plasmonic-dielectric compound grating with high group-index and transmission
• Disordered Zero-Index Metamaterials Based On Metal Induced Crystallization
• Tunable Geometric Fano Resonances in a Metal/Insulator Stack
• Effects of mode mixing and avoided crossings on the transverse spin in a metal-dielectic-metal sphere
• Optical Neutrality: Invisibility without Cloaking
• Cavity Enhanced Interference of Orthogonal Modes in a Birefringent Medium
• Coupled-Plasmon-Controlled Transmission in Distributed Bragg Structures