Abstract
A millimeter-wave interferometer operating purely on the geometric phase is presented. Like its optical counterpart described by Hariharan and Roy, this system uses two circular polarizers with a half-wave section in between. The geometric phase of each signal is determined by the orientation of the half-wave section.
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References
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Brand, G.F. A millimeter-wave geometric phase interferometer. Int J Infrared Milli Waves 18, 1655–1662 (1997). https://doi.org/10.1007/BF02678277
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DOI: https://doi.org/10.1007/BF02678277