Optically defined cavities in driven-dissipative photonic lattices
Abstract
The engineering of localised modes in photonic structures is one of the main targets of modern photonics. An efficient strategy to design these modes is to use the interplay of constructive and destructive interference in periodic photonic lattices. This mechanism is at the origin of defect modes in photonic bandgaps, bound states in the continuum and compact localised states in flat bands. Here we show that in lattices of lossy resonators, the addition of external optical drives with controlled phase enlarges the possibilities of manipulating interference effects and allows designing novel types of localised modes. Using a honeycomb lattice of coupled micropillars resonantly driven with several laser spots at energies within its photonic bands we demonstrate the localisation of light in at-will geometries down to a single site. These localised modes can be seen as fully reconfigurable optical cavities with the potentiality of enhancing nonlinear effects and of controlling light-matter interactions with single site resolution.
Cite
@article{arxiv.2112.07753,
title = {Optically defined cavities in driven-dissipative photonic lattices},
author = {O. Jamadi and B. Real and K. Sawicki and C. Hainaut and A. Gonzalez-Tudela and N. Pernet and I. Sagnes and M. Morassi and A. Lemaitre and L. Le Gratiet and A. Harouri and S. Ravets and J. Bloch and A. Amo},
journal= {arXiv preprint arXiv:2112.07753},
year = {2021}
}
Comments
15 pages main text + 8 pages supplemental