Even though dual-comb-based systems are employed almost routinely nowadays in an ever-increasing number of applications, an efficient combination of this effective technique with an imaging arrangement, which would undoubtedly revolutionize hyperspectral imaging, had not yet been demonstrated. Here we present, to our knowledge, the first hyperspectral dual-comb imaging system in which interferograms are directly detected by a video camera. The system, based on a dual-comb scheme capable of consistently generating interferograms at a rate of 1 Hz and below, combines fast hyperspectral imaging with unprecedented optical resolution and fully multiplex operation. Various proof-of-principle experiments demonstrating hyperspectral imaging of molecular resonances have proved that the direct hyperspectral dual-comb imaging method presented here is capable of characterizing a scene with super-fine resolution in a narrow optical span within 1 s.

中文翻译：

---

直接高光谱双梳成像

尽管如今在越来越多的应用中几乎每天都使用基于双梳的系统，但是尚未证明这种有效技术与成像装置的有效结合，这无疑会彻底改变高光谱成像。在这里，据我们所知，我们提出了第一个高光谱双梳成像系统，其中干涉图由摄像机直接检测。该系统基于双梳方案，能够以1 Hz或更低的频率持续生成干涉图，将快速的高光谱成像与前所未有的光学分辨率和全多路复用操作相结合。