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7 October 2011 High spectral resolution imager for solar induced fluorescence observation
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The use of high-resolution imagers for determination of solar-induced fluorescence of natural bodies by observing the infilling of Fraunhofer lines has been frequently adopted as a tool for vegetation characterization. The option to perform those measurements from airborne platforms was addressed in the past. In-field observations gave evidence of the main requirements for an imaging spectrometer to be used for Sun-induced fluorescence measurements such as high spectral resolution and fine radiometric accuracy needed to resolve the shape of observed Fraunhofer lines with a high level of accuracy. In this paper, some solutions for the design of a high spectral resolution push-broom imaging spectrometer for Sun-induced fluorescence measurements are analysed. The main constraints for the optical design are a spectral resolution better than 0.01 nm and a wide field of view. Due to the fine instrumental spectral resolution, bidimensional focal plane arrays characterized by high quantum efficiency, low read-out noise, and high sensitivity are requested. The development of a lightweight instrument is a benefit for aerospace implementations of this technology. First results coming from laboratory measurements and optical simulations are presented and discussed taking into account their feasibility.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Barducci, D. Guzzi, C. Lastri, P. Marcoionni, V. Nardino, I. Pippi, V. Raimondi, and P. Sandri "High spectral resolution imager for solar induced fluorescence observation", Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011, 81750G (7 October 2011);

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