A Monte Carlo simulation of optical transmission in anti-resonant reflective optical waveguides with a thermal-atomic-vapor core

Abstract

The light-atom interaction is the major research subject in atomic-based optical devices. In this study, we develop a Monte Carlo simulation of light-atom interaction to study the transmission properties of the Anti-Resonant Reflective Optical Waveguides with a thermal-atomic-vapor core. The surface-atom interaction is considered in the simulation by calculating Green's tensor through a numerical method. And this interaction causes a shift of resonance frequency and modified spontaneous emission rate of the atoms close to the surface. Further, we run some simulations for the different input light power. And these simulation results show a nonlinear relation between input light power and the amplitude of absorption. We also simulate power transmission versus the traveling length of light in the core, where we obtain the longitudinal penetration depth of light. These results and Monte Carlo simulations pave the way to design other optical devices and establish integrated optical circuits.