Imaging Polarimetry of the 2017 Solar Eclipse with the RIT Polarization Imaging Camera

In the last decade, imaging polarimeters based on micropolarizer arrays have been developed for use in terrestrial remote sensing and metrology applications. Micropolarizer-based sensors are dramatically smaller and more mechanically robust than other polarimeters with similar spectral response and...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2019-09
Main Authors: Vorobiev, Dmitry, Ninkov, Zoran, Lee, Bernard, Brock, Neal
Format: Article
Language:English
Subjects:
Apertures
Astronomical polarimetry
Calibration
Cameras
Celestial bodies
Data acquisition
Demodulation
Imaging
Imaging polarimeters
Linear polarization
Photometry
Pixels
Polarimeters
Remote sensing
Remote sensors
Sensors
Solar corona
Solar eclipses
Spectral sensitivity
Thomson scattering
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the last decade, imaging polarimeters based on micropolarizer arrays have been developed for use in terrestrial remote sensing and metrology applications. Micropolarizer-based sensors are dramatically smaller and more mechanically robust than other polarimeters with similar spectral response and snapshot capability. To determine the suitability of these new polarimeters for astronomical applications, we developed the RIT Polarization Imaging Camera to investigate the performance of these devices, with a special attention to the low signal-to-noise regime. We characterized the device performance in the lab, by determining the relative throughput, efficiency, and orientation of every pixel, as a function of wavelength. Using the resulting pixel response model, we developed demodulation procedures for aperture photometry and imaging polarimetry observing modes. We found that, using the current calibration, RITPIC is capable of detecting polarization signals as small as
ISSN:2331-8422
DOI:10.48550/arxiv.1909.12785