Development of a large field-of-view KD potassium di-deuterium phosphate modulator: Center Director's Discretionary Fund

Details Development of a large field-of-view KD potassium di-deuterium phosphate modulator: Center Director's Discretionary Fund Development of a large field-of-view KD potassium di-deuterium phosphate modulator: Center Director's Discretionary Fund

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993msfc.rept.....w&link_type=abstract

Final Report National Aeronautics and Space Administration. Marshall Space Flight Center, Huntsville, AL.

Physics

Optics

Astronomical Polarimetry, Electro-Optics, Modulators, Polarized Light, Solar Magnetic Field, Birefringence, Field Of View, Magnetic Flux, Magnetic Signatures

Scientific paper

Magnetographs, which measure polarized light, allow solar astronomers to infer the magnetic field intensity on the Sun. The Marshall Space Flight Center (MSFC) Vector Magnetograph is such an imaging instrument. The instrument requires rapid modulation between polarization states to minimize seeing effects. The accuracy of those polarization measurements is dependent on stable modulators with small field-of-view errors. Although these devices are very important in ground-based telescopes, extending the field of view of electro-optical crystals such as KD*Ps (potassium di-deuterium phosphate) could encourage the development of these devices for other imaging applications. The work that was done at MSFC as part of the Center Director's Discretionary Fund (CDDF) to reduce the field-of-view errors of instruments that use KD*P modulators in their polarimeters is described.

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