SWIR Hyperspectral Cameras

What is SWIR hyperspectral imaging?

SWIR hyperspectral imaging (Short-Wave Infrared hyperspectral imaging) is an advanced technique that combines detailed spectral analysis with high-resolution imaging in the SWIR range, typically 900–2500 nm. Unlike standard imaging, which only captures broad color information, SWIR hyperspectral cameras collect full spectral data at each pixel, creating a rich “hypercube.” This three-dimensional dataset allows precise material identification, chemical composition analysis, and detection of subtle physical variations that are invisible to traditional cameras.

SWIR hyperspectral imaging works by capturing hundreds of narrow, contiguous spectral bands simultaneously or sequentially. This enables users to distinguish between materials based on their unique spectral signatures — even when they look identical to the human eye. It has become essential for non-destructive testing, advanced quality control, and material characterization.

Applications of SWIR hyperspectral Cameras

SWIR hyperspectral cameras are widely used across scientific, industrial, and research applications, including:

Semiconductor and solar cell inspection: Detecting micro-defects, verifying layer uniformity, and identifying contamination.
Food and pharmaceutical quality control: Ensuring product consistency, detecting foreign materials, and analyzing chemical composition.
Recycling and material sorting: Differentiating and separating various plastics and other materials efficiently.
Agriculture and plant research: Monitoring plant health, water content, and nutrient levels.
Art conservation and cultural heritage: Revealing hidden layers, underdrawings, and material composition in artworks.