Dipole emission and coherent transport in random media III. Emission from a real cavity in a continuous medium

TL;DR

This paper develops a microscopic approach to dipole emission and coherent transport in random media, focusing on the power emitted and decay rates of a dipole within a real cavity in a continuous medium.

Contribution

It introduces a detailed microscopic analysis of dipole emission and decay rates in the context of a real cavity embedded in a continuous medium, extending previous theoretical models.

Findings

Calculated the power emitted by an induced dipole in a real cavity.

Determined the spontaneous decay rate of a Lorentzian dipole within the cavity.

Provided insights into the relation between dipole emission and coherent transport in random media.

Abstract

This is the third of a series of papers devoted to develop a microscopical approach to the dipole emission process and its relation to coherent transport in random media. In this paper, we compute the power emitted by an induced dipole and the spontaneous decay rate of a Lorentzian-type dipole. In both cases, the emitter is placed at the center of a real cavity drilled in a continuous medium.