Other
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...3e..50h&link_type=abstract
Solar Active Regions and 3D Magnetic Structure, 26th meeting of the IAU, Joint Discussion 3, 16-17 August, 2006, Prague, Czech R
Other
Scientific paper
The Solar Flare Telescope of NAOJ, Mitaka, has been observing the photospheric magnetic field in the Fe I 6303 line with the imaging polarimetry technique for more than 10 years. Recently, we replaced the polarimeter for the Fe I 6303 observation with a high-sensitive one, using ferroelectric liquid crystals (FLC). Another FLC polarimeter has also installed into the Hα imager of the Solar Flare Telescope. Our FLC polarimeters have the polarization sensitivity of the order of 10^-4, and with this sensitivity not only substantial improvement of the quality of photospheric vector magnetograms, but also detection of the full-Stokes polarization signals in the Hα line were realized. Now, we are operating simultaneous full-Stokes imaging polarimetry observations in the photosphere and in the chromosphere, and the three-dimensional information of the structure of the magnetic field can be obtained. In the meeting, we will present some examples of the magnetic field observations carried out in the Fe I 6303 and the Hα lines simultaneously.
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