AI-enabled real-time dual-comb molecular fingerprint imaging

Thibault Voumard, Thibault Wildi, Victor Brasch, Raúl Gutiérrez Álvarez, Germán Vergara Ogando, and Tobias Herr

Optics Letters, Vol. 45, Issue 24, pp. 6583-6586 (2020)

Abstract: 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. Read full paper here.

The NIT (New Infrared Technologies) TACHYON 16k  is an uncooled MWIR thermal camera which offers resolution of 128×128 and frame rates up to 4000 images per second, with GigE VISION interface and GenICam compatible.

• Uncooled MWIR 128×128 pixels infrared camera with high-speed frame rates  (4,000 fps max)
• Configurable ROI windowing (allows faster frame rates)
• Maximum added value and affordability to ensure a full integration in the INDUSTRY 4.0 applications
• Multiple industrial applications: Machine Vision, AM/laser process monitoring, gas detection, QA

Download datasheet here.