Initial operation of a scanning Stokes polarimeter

Details Initial operation of a scanning Stokes polarimeter Initial operation of a scanning Stokes polarimeter

Dec 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...45..495h&link_type=abstract

Solar Physics, vol. 45, Dec. 1975, p. 495-500.

Physics

Optics

7

Polarimeters, Solar Atmosphere, Solar Magnetic Field, Stokes Law Of Radiation, Electro-Optics, Line Spectra, Spectral Line Width, Sunspots

Scientific paper

The paper describes a polarimeter which has been designed and constructed to measure the Stokes parameters of magnetic fields in the solar atmosphere as a function of wavelength across any given line in the visible spectrum. The principal components of the polarimeter are two KDP electrooptic crystals, one modulated at 5.5 kHz with a 0.38 wave retardance and the other modulated at 1.0 kHz with a 0.147 wave retardance. A sample set of Stokes scans from four raster points in a sunspot observation is presented in which the four Stokes parameters are displayed as a function of wavelength across the Fe I line at 6173 A. These sample scans illustrate how the Stokes parameters change with variations in the vector magnetic field as the sunspot is crossed. The vector magnetic fields are derived from the sample data using a fairly crude LTE scheme in which two points on each Stokes profile are matched to LTE computations by employing Unno's (1956) equations.

Affiliated with

Also associated with

No associations

Rating

Initial operation of a scanning Stokes polarimeter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Initial operation of a scanning Stokes polarimeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Initial operation of a scanning Stokes polarimeter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1578988