The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Nov. 08, 2019
Seti Institute, Mountain View, CA (US);
William B. Sparks, Hampstead, MD (US);
SETI INSTITUTE, Mountain View, CA (US);
Abstract
Embodiments of a system and a method for polarimetry using static geometric manipulation of the state of polarization are disclosed. According to one embodiment, a spectropolarimeter comprises a retarder having a geometrically changing fast axis. The fast axis changes along a polarimetric dimension. The spectropolarimeter has a polarization analyzer and a spectrographic optical platform. The spectrographic optical platform has a slit in a spatial dimension same as the polarimetric dimension of the retarder; a collimator; a dispersing element for dispersing spectral components of light received from the collimator along a spectral dimension that is perpendicular to the spatial dimension of the slit; a focusing optic; and a two-dimensional detector array. Using a quarter wave retarder full Stokes polarimetry can be provided though a half wave retarder can also be used.