18 August 2005 Large field-of-view KD*P modulator for solar polarization measurements
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Abstract
This paper will describe the evolution of the Marshall Space Flight Center's (MSFC) electro-optical polarimeter with emphasis on the field-of-view characteristics of the KD*P modulator. Understanding those characteristics was essential to the success of the MSFC solar vector magnetograph. The paper will show how the field-of-view errors of KD*P look similar to the linear polarization patterns seen in simple sunspots and why the placement of the KD*P in a collimated beam was essential in separating the instrumental polarization from the solar signal. Finally, this paper will describe a modulator design which minimizes those field-of-view errors.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. A. West, G. A. Gary, M. Noble, D. Choudhary, and B. Robinson "Large field-of-view KD*P modulator for solar polarization measurements", Proc. SPIE 5888, Polarization Science and Remote Sensing II, 588806 (18 August 2005); doi: 10.1117/12.613240; https://doi.org/10.1117/12.613240
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