Non-Hermitian two-dimensional photonic crystal flat lens
Optics
2019-12-16 v2
Abstract
In this paper, a non-Hermitian two-dimensional photonic crystal flat lens is proposed. The negative refraction of the second band of photonic crystal is utilized to realize super-resolution imaging of the point source. Based on the principles of non-Hermitian systems, a negative imaginary part is introduced into the imaging frequency, in which case the imaging intensity and resolution are improved. The results indicate that the non-Hermitian system provides a new method to improve the imaging performance of the photonic crystal lens.
Cite
@article{arxiv.1912.02410,
title = {Non-Hermitian two-dimensional photonic crystal flat lens},
author = {Longfei Li and Jianlan Xie and Jianjun Liu},
journal= {arXiv preprint arXiv:1912.02410},
year = {2019}
}