Lasing and Amplification from Two-Dimensional Atom Arrays
Abstract
We explore the ability of two-dimensional periodic atom arrays to produce light amplification and generate laser emission when gain is introduced through external optical pumping. Specifically, we predict that lasing can take place for arbitrarily weak atomic scatterers assisted by cooperative interaction among atoms in a 2D lattice. We base this conclusion on analytical theory for three-level scatterers, which additionally reveals a rich interplay between lattice and atomic resonances. Our results provide a general background to understand light amplification and lasing in periodic atomic arrays, with promising applications in the generation, manipulation, and control of coherent photon states at the nanoscale.
Cite
@article{arxiv.1807.03231,
title = {Lasing and Amplification from Two-Dimensional Atom Arrays},
author = {Vahagn Mkhitaryan and Lijun Meng and Andrea Marini and F. Javier Garcia de Abajo},
journal= {arXiv preprint arXiv:1807.03231},
year = {2018}
}
Comments
17 pages, 7 figures, fully self-contained derivation of 2D array scattering and lasing