Loss compensation by spasers in metamaterials
Mesoscale and Nanoscale Physics
2013-05-31 v2 Optics
Abstract
We show that exact loss compensation can be achieved in active metamaterials containing spasers pumped over a wide range of pumping values both below and above the spasing threshold. We demonstrate that the difference between spaser operation below and above spasing threshold vanishes, when the spaser is synchronized by an external field. As the spasing threshold loses its significance, a new pumping threshold, the threshold of loss compensation, arises. Below this threshold, which is smaller than the spasing threshold, compensation is impossible at any frequency of the external field.
Cite
@article{arxiv.1209.0422,
title = {Loss compensation by spasers in metamaterials},
author = {E. S. Andrianov and D. G. Baranov and A. A. Pukhov and A. V. Dorofeenko and A. P. Vinogradov and A. A. Lisyansky},
journal= {arXiv preprint arXiv:1209.0422},
year = {2013}
}