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NASA earth scientist Kerry Meyer and researchers at Harvard University are developing metasurface technology capable of analyzing light along four polarization directions. With one flat optical component, intensity, linear polarization (horizontal and vertical), and circular polarization can be analyzed.
Light, such as sunlight traveling through the atmosphere, becomes polarized in different ways as it is scattered by water, vapor, ice, aerosols created by living organisms, dust, and other particulates. Polarization measurements enable the extrapolation of what is in the atmosphere.
“Up until recently, polarimeters have been pretty large instruments, and depending on the measurement strategy, could involve lots of moving…READ MORE