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Full Stokes Infrared Spectropolarimetry at the VTT (1Dec95) (from NSO, NOAO Newsletter No. 44, December 1995) A new near-IR polarimetry system was successfully deployed at the NSO/SP Vacuum Tower Telescope. Using liquid crystal variable retarders, a system for analyzing the full (I,Q,U,V) polarization in the 1-2.4 um wavelength band has been implemented by Haosheng Lin. During the first observing run with the new system, spectroscopic data near the He I line at 1083 nm and Fe lines near 1565 nm were obtained using the VTT correlation tracker with subarcsecond seeing. This run turned out to be especially fortuitous because two flaring regions were observed and the Stokes polarization of the He I line was sampled during and after the flare. Spectropolarimetric observations of filaments also yielded preliminary measurements of prominence magnetic fields. This new instrumentation greatly improves our ability to measure vector magnetic fields in the high chromosphere dark a region where the dynamics and evolution of the field are interesting and important. H. Lin, J. R. Kuhn
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