Large field-of-view KD*P modulator for solar polarization measurements

E. A. West; G. A. Gary; M. Noble; D. Choudhary; B. Robinson

doi:10.1117/12.613240

18 August 2005 Large field-of-view KD*P modulator for solar polarization measurements

E. A. West, G. A. Gary, M. Noble, D. Choudhary, B. Robinson

Proceedings Volume 5888, Polarization Science and Remote Sensing II; 588806 (2005) https://doi.org/10.1117/12.613240
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.613240

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