Discrete Coordinate Scattering Approach to Nano-optical Resonance

TL;DR

This paper introduces a discrete coordinate scattering method to analyze photon tunneling in nano-optical resonators, providing microscopic insights and validating results with FDTD simulations.

Contribution

It presents a novel discrete coordinate scattering approach for nano-optical resonance, elucidating the microscopic tunneling mechanism and modeling defect coupling.

Findings

Detailed microscopic tunneling mechanism revealed

Simple defect coupling model developed

FDTD simulations support analysis

Abstract

In this letter, we investigate the coherent tunneling process of photons between a defected circular resonator and a waveguide based on the recently developed discrete coordinate scattering methods (L. Zhou et al., Phys. Rev. Lett. 101, 100501 (2008)). We show the detailed microscopic mechanism of the tunneling and present a simple model for defect coupling in the resonator. The Finite-Difference Time-Domain(FDTD) numerical results is explored to illustrate the analysis results.