Propagation of light through amplifying honeycomb photonic lattice
Mesoscale and Nanoscale Physics
2020-10-14 v2 Optics
Abstract
We consider light propagation through a ballistic amplifying photonic honeycomb lattice below the lasing threshold. Two sublattices of the system are formed by the wave-guides with different complex dielectric permittivities, which results in the non-Hermitian Dirac equation for electromagnetic field. We reveal that there exists a critical length of the amplifying region for which the photonic lattice exhibits an amplifier to generator transition. The transmission and reflection probabilities at the normal angle of incidence are strongly enhanced at a critical length of the system. We also comment on the sensitivity of amplification to the direction of incident light and the thickness of the amplifying region.
Keywords
Cite
@article{arxiv.2005.11831,
title = {Propagation of light through amplifying honeycomb photonic lattice},
author = {SK Firoz Islam and Pascal Simon and Alexander A. Zyuzin},
journal= {arXiv preprint arXiv:2005.11831},
year = {2020}
}
Comments
To appear in Physical Review A