Optical properties of KD*P modulatorsLongitudinal KD*P modulators are used in ground-based solar magnetographs to eliminate seeing effects. Although the modulators can be used as variable retarders, the optical properties when zero voltage is applied influences the performance on instruments requiring very accurate polarization measurements. Measurements at the Marshall Space Flight Center are discussed in terms of the optical properties of KD*P modulators when zero voltage is applied. The measurements can be used to predict the modulation characteristics of the devices and to determine the polarization accuracy that can be expected from the vector magnetograph.
Document ID
19910066874
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
West, E. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Bhatia, S. S. (Alabama, University Huntsville, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Optics
Meeting Information
Meeting: Polarimetry: Radar, Infrared, Visible, Ultraviolet, and X-ray