hyperspectral imaging
spectral imaging

Reflectance spectral imaging is an efficient way of collecting millions of reflectance spectra over an area in one image cube (2D spatial and wavelength in the 3rd dimension). In the visible-NIR spectral region, the spectral features primarily concern electronic transitions in molecules, enabling the identification of most pigments. With this system, the higher spectral resolution allows for the firm identification of a handful of pigments and dyes with sharp spectral features (e.g. cobalt pigments, anthraquinone dyes). In its microscopic configuration, high spectral resolution microscopic images of a small region can be collected at a standoff distance of a few cm, allowing pigment identification of object features which are around a few microns in scale, or for dynamic monitoring of small regions e.g. an irradiation spot. Scanning of a region can be achieved through translation of the object or spectral imaging system via computer controlled XYZ motorised linear translation stages synchronised to the instrument.

Other

VIS/NIR reflectance spectral imaging

Analysis Method

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