Theory of phonon-modified quantum dot photoluminescence intensity in structured photonic reservoirs

Autor: Roy-Choudhury, Kaushik, Hughes, Stephen
Rok vydání: 2014
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1364/OL.40.001838
Popis: The spontaneous emission rate of a quantum dot coupled to a structured photonic reservoir is determined by the frequency dependence of its local density of photon states. Through phonon-dressing, a breakdown of Fermi's golden rule can occur for certain photonic structures whose photon decay time become comparable to the longitudinal acoustic phonon decay times. We present a polaron master equation model to calculate the photoluminescence intensity from a coherently excited quantum dot coupled to a structured photonic reservoir. We consider examples of a semiconductor microcavity and a coupled cavity waveguide and show clear photoluminescence intensity spectral features that contain unique signatures of the interplay between phonon and photon bath coupling.
Databáze: arXiv