AI-enabled real-time dual-comb molecular fingerprint imaging
Hyperspectral imaging provides spatially resolved spectral information. Utilizing dual-frequency combs as active illumination sources, hyperspectral imaging with ultra-high spectral resolution can be implemented in a scan-free manner when a detector array is used for heterodyne detection. Here, we s...
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| Veröffentlicht in: | Optics letters 2020-12, Vol.45 (24), p.6583-6586 |
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| container_issue | 24 |
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| container_title | Optics letters |
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| creator | Voumard, Thibault Wildi, Thibault Brasch, Victor Álvarez, Raúl Gutiérrez Ogando, Germán Vergara Herr, Tobias |
| description | Hyperspectral imaging provides spatially resolved spectral information. Utilizing dual-frequency combs as active illumination sources, hyperspectral imaging with ultra-high spectral resolution can be implemented in a scan-free manner when a detector array is used for heterodyne detection. Here, we show that dual-comb hyperspectral imaging can be performed with an uncooled near-to-mid-infrared detector by exploiting the detector array's high frame rate, achieving 10 Hz acquisition in 30 spectral channels across 16,384 pixels. Artificial intelligence (AI) enables real-time data reduction and imaging of gas concentration based on characteristic molecular absorption signatures. Owing to the detector array's sensitivity from 1 to 5 µm wavelength, this demonstration lays the foundation for real-time versatile imaging of molecular fingerprint signatures across the infrared wavelength regime with high temporal resolution. |
| doi_str_mv | 10.1364/OL.410762 |
| format | Article |
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| ispartof | Optics letters, 2020-12, Vol.45 (24), p.6583-6586 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2470627955 |
| source | Optica Publishing Group Journals |
| subjects | Arrays Artificial intelligence Chemical fingerprinting Data reduction Hyperspectral imaging Infrared detectors Infrared radiation Infrared signatures Molecular absorption Real time Sensors Spectra Spectral resolution Temporal resolution |
| title | AI-enabled real-time dual-comb molecular fingerprint imaging |
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