Nanostructure-enhanced infrared spectroscopy
Nanostructure-enhanced infrared spectroscopy
复制标题
DOI：
10.1515/nanoph-2021-0661
复制
发表时间：
2021-12
期刊：
影响因子：
7.5
通讯作者：
Takuo Tanaka;T. Yano;R. Kato
中科院分区：
文献类型：
--
作者：
Takuo Tanaka;T. Yano;R. Kato
摘要虽然红外光谱是一种强大的技术，提供分子信息，如化学成分和化学结构的分析物，它遭受低吸收截面导致低灵敏度和差的信号噪声或信号背景比。表面增强红外吸收（SEIRA）光谱技术是一种利用表面等离子体共振场增强特性来增强红外信号的新技术，它以纳米尺度结构为支撑，克服了传统红外光谱技术中存在的这些问题。最近提出的共振SEIRA技术，信号增强因子得到了显著提高。在这篇综述中，我们提出了一个概述的最新进展，共振SEIRA技术，包括纳米天线和超材料为基础的SEIRA，也SEIRA技术与纳米成像能力。
Abstract While infrared spectroscopy is a powerful technique that provides molecular information such as chemical constituents and chemical structures of analytes, it suffers from low absorption cross-section resulting in low sensitivity and poor signal-to-noise or signal-to-background ratios. Surface-enhanced infrared absorption (SEIRA) spectroscopy, which is supported by nanometer scale structures, is a promising technology to overcome these problems in conventional infrared (IR) spectroscopy and enhances IR signals using the field enhancement properties of surface plasmon resonance. Recently resonant SEIRA technique was proposed, and signal enhancement factor was significantly improved. In this review, we present an overview of the recent progresses on resonant SEIRA technologies including nanoantenna- and metamaterial-based SEIRA, and also SEIRA techniques with nanoimaging capabilities.