SPECIM Spectral Imaging Ltd. (Oulu, Finland) has released AisaIBIS, a robust and very high spectral resolution hyperspectral imager for ground and airborne measurement of sun induced fluorescence from plants.

The most valuable feature of AisaIBIS is its ability to measure the secret light of plants, the weak sun induced fluorescence signal. During the photosynthesis, plants convert light energy from the sun into chemical energy that fuels organism growth. During that process part of the absorbed light energy is emitted back as a faint glow – the fluorescence. Measured fluorescence can be used as an indicator of photosynthetic activity of the plant, thus telling its health and vitality.

AisaIBIS is designed to measure the fluorescence signal by applying the Fraunhofer Line Depth Method. This method requires high spectral resolution in the order of 0.25 nm, high dynamic range and high signal-to-noise ratio. AisaIBIS is the first commercial hyperspectral imager which meets these requirements, even at the image rate required in airborne data collection. It works as a robust tool for mapping the sun induced fluorescence from single leaves to complete ecosystems.

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Photonics Tech Briefs Magazine

This article first appeared in the July, 2014 issue of Photonics Tech Briefs Magazine.

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