Imaging Michelson interferometers
The imaging solid wide-field Michelson (SWFM) interferometer has a performance superior to that of a wide-field birefringent element because of its smaller angle sensitivity and its relative insensitivity to temperature. For these reasons SWFM filter systems were chosen as the imaging spectrometers for the Michelson Doppler Imager on SOHO and for the Helioseismic and Magnetic Imager on the SDO. Theory and practice in space are described for SWFM filters.
KeywordsBeam Splitter Path Difference Polarize Beam Splitter Michelson Interferometer Michelson Doppler Imager
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