Title

High-Resolution Low-Noise Polarization Imaging Sensor for Astronomical Applications

Author

Radoslav Marinov, Washington University in St LouisFollow

Author's School

School of Engineering & Applied Science

Author's Department/Program

Electrical and Systems Engineering

Language

English (en)

Date of Award

Summer 8-1-2013

Degree Type

Thesis

Degree Name

Master of Science (MS)

Chair and Committee

Viktor Gruev

Abstract

Polarization imaging is useful to the field of astronomy because the polarization state caused by reflections, scattering events, and magnetic fields can be used to infer properties such as shape and index of refraction about celestial bodies. This work presents a low-noise high-resolution polarization imaging sensor consisting of a CCD imager overlaid with a nanowire linear polarizer filter array of four different orientations: 0°, 45°, 90°, and 135°) matched to the pixel pitch. Fabrication details and experimental setup for characterization are discussed. The performance of the sensor is assessed over a range of polarization states, light intensities, wavelengths, and incident angles; a model for crosstalk is also presented.

Comments

Permanent URL: http://dx.doi.org/10.7936/K72J68ZH

Recommended Citation

Marinov, Radoslav, "High-Resolution Low-Noise Polarization Imaging Sensor for Astronomical Applications" (2013). All Theses and Dissertations (ETDs). 1165.
https://openscholarship.wustl.edu/etd/1165