用于场增强红外分子光谱的声学石墨烯等离激元纳米谐振器
光学
2018-05-03 v1
摘要
场增强红外分子光谱已广泛应用于化学分析、环境监测和食品药品安全。分子光谱的灵敏度关键取决于传感元件中的电磁场约束与增强。在此我们提出一种传感概念，由与金属膜被纳米间隔层隔开的石墨烯等离激元纳米谐振器构成。此类谐振器可支持声学石墨烯等离激元（AGPs），提供超约束电磁场和强场增强。与石墨烯中的常规等离激元相比，AGPs 展现出更高的自发发射率、对 AGP 纳米谐振器内介电常数更高的灵敏度，以及增强纳米尺度分析物样品分子振动指纹的显著能力。我们的工作为超小体积分子传感以及研究增强光-物质相互作用（例如强耦合应用）开辟了新途径。
引用
@article{arxiv.1805.00661,
title = {Acoustic Graphene Plasmon Nanoresonators for Field Enhanced Infrared Molecular Spectroscopy},
author = {S. Chen and M. Autore and J. Li and P. Li and P. Alonso-Gonzalez and Z. -L. Yang and L. Martín-Moreno and R. Hillenbrand and A. Nikitin},
journal= {arXiv preprint arXiv:1805.00661},
year = {2018}
}
备注
This document is the Accepted Manuscript version of a Published Work that appeared in ACS Photonics, copyright American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see: https://pubs.acs.org/doi/abs/10.1021/acsphotonics.7b00654. The authors acknowledge support from the EC under the GrapheneCore1, grant no. 696656