Ullah Khan Farid, Guarnizo Guillermo, Martín-Mateos Pedro
Opt Lett. 2020 Oct 1;45(19):5335-5338. doi: 10.1364/OL.402875.
In this Letter, we present and experimentally validate the first direct hyperspectral dual-comb gas imaging system operating in the mid-infrared region. This method provides an unmatched combination of super-fine spectral characterization and high temporal resolution without the need for thermal contrast between the target molecules and the background. In a proof-of-concept experiment, the system has allowed us to perform precision hyperspectral imaging of butane in the 3.4 µm band with a time resolution of 1 s.
在本信函中，我们展示并通过实验验证了首个在中红外区域运行的直接超光谱双梳气体成像系统。该方法提供了超精细光谱表征与高时间分辨率的无与伦比的组合，而无需目标分子与背景之间的热对比度。在一个概念验证实验中，该系统使我们能够在3.4 µm波段对丁烷进行精度超光谱成像，时间分辨率为1秒。
