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Updated: May 8, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Confocal microphotoluminescence mapping of coupled and detuned states in photonic molecules
F S F Brossard1, B P L Reid, C C S Chan
1Hitachi Cambridge Laboratory, Hitachi Europe Ltd, Cambridge CB3 0HE, UK.
Abstract:
We study the coupling of cavities defined by the local modulation of the waveguide width using confocal photoluminescence microscopy. We are able to spatially map the profile of the antisymmetric (antibonding) and symmetric (bonding) modes of a pair of strongly coupled cavities (photonic molecule) and follow the coupled cavity system from the strong coupling to the weak coupling regime in the presence of structural disorder. The effect of disorder on this photonic molecule is also investigated numerically with a finite-difference time-domain method and a semi-analytical approach, which enables us to quantify the light localization observed in either cavity as a function of detuning.
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