Headwall and Holographix, a Headwall Group company, will be part of the US Pavilion at the Laser World of Photonics in Munich, Tuesday, June 27 - 30, 2023. Come see our custom optical solutions portfolio and capabilities, ranging from custom replicated and master diffraction gratings, microlens arrays, structured diffusers, and other wafer-level micro- and nano-optical solutions.
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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 Solar-Induced Fluorescence (SIF) signal. Not only that, but the sensor is CE certified and can be reliably operated aboard a manned aircraft. So, what could we do for your needs?
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 Value 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.