Application-Specific Sensors: SIF Imaging

Rising to the Challenge

Headwall designed and created a sensor with sub-nm spectral resolution, high spatial resolution, and the optimal wavelength range to not only detect but to image the SIF signal. Not only that, but to allow reliable operation onboard a manned aircraft. What could we do for your needs?

NASA Firefly » SIF Imaging Sensor Application & Product Overview » SIF Imaging Sensor Datasheet » Request a Demo »

What is Solar-Induced Fluorescence?

A fraction of the light absorbed by chlorophyll molecules in plants is re-emitted at longer wavelengths. This Solar-Induced Fluorescence (SIF) can measured at a small point by instruments in the field or in space. Here is a short but entertaining video explaining the phenomena produced by Karen Yuen and written, animated, and narrated by Meg Rosenburg (no connection to Headwall).

The Challenge of Solar-Induced Fluorescence

Remote sensing of solar-induced fluorescence (SIF) is rapidly advancing as a technique in agricultural and environmental science, although it is founded upon decades of research, applications, and sensor developments in active and passive sensing of chlorophyll fluorescence. The extremely weak yet distinct SIF signal can be assessed remotely using a very high-resolution spectral sensor in tandem with state-of-the-art algorithms to distinguish the emission from reflected and/or scattered ambient light.