High-sensitivity bio-sensor based on the real-splitting indirectly coupled Anti-Parity time symmetric WGMs
Optics
2020-01-13 v3 Applied Physics
Abstract
Detecting the size of single nanoparticle with high precision is crucial to understanding the characteristic of the nanoparticle. In this paper, we research the single particle detection based on the Anti-parity time symmetric (APT) indirectly coupled WGMs. The results show that the Anti-parity time symmetric WGM nanoparticle sensor exhibits giant enhancement in frequency splitting compared with single WGM sensor, when the system operating at exceptional point (EP). With respect to the parity-time symmetric nanoparticle sensor, our research exhibits a real eigenfrequency splitting, which can be directly detected.
Keywords
Cite
@article{arxiv.1912.04072,
title = {High-sensitivity bio-sensor based on the real-splitting indirectly coupled Anti-Parity time symmetric WGMs},
author = {Wenxiu Li and Hao Zhang and Peng Han and Xiaoyang Chang and Shuo Jiang and Yang Zhou and Anping Huang and Zhisong Xiao},
journal= {arXiv preprint arXiv:1912.04072},
year = {2020}
}