Open AccessCooperative optical response of 2D dense lattices with strongly correlated dipoles
Author(s) -
Sung-Mi Yoo,
Sun M. Paik
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.002156
Subject(s) - isotropy , physics , dipole , atom (system on chip) , resonance (particle physics) , computation , lattice (music) , molecular physics , optics , atomic physics , square lattice , condensed matter physics , laser , line (geometry) , quantum mechanics , geometry , mathematics , algorithm , computer science , acoustics , ising model , embedded system
We study light propagation in dense low-temperature atoms on two-dimensional (2D) square and kagome lattices using a basically exact large-scale numerical computations. In the limit of weak laser intensity, shifts of the resonance line are shown in homogeneously broadened stationary samples with high atom densities, whereas the shifts are not shown in the samples with low densities. We obtain the dependence of shifts on interatomic spacing for square lattices with the various numbers of atoms, and our numerical results are in good agreement with shifts derived using a 2D isotropic infinite lattice model and experimental data for nanometric-thickness atomic ensembles in the literature.