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White Light Achromatic Grating Imaging Polarimeter

Researchers at the University of Arizona have developed white light polarization-grating-based imaging polarimeters and associated methods. These "snapshot" imaging polarimeters operate over broad wavelength ranges, including thermal infrared and visible wavelengths. The polarization gratings produce a shear between first and second polarization...

Published: 4/3/2023 | Inventor(s): Michael Kudenov

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry, Technology Classifications > Imaging & Optics > Medical Imaging

Snapshot Imaging Fourier Transform Spectrometer with Achromatic Wollaston Prisms

Researchers at The University of Arizona have developed a novel device that answers challenges of increased robustness and faster acquisition time. This new device has no moving mechanical parts, mounts directly onto the focal plane imaging array, and acquires both the spectral and spatial information at once. Thus, this new device is significantly...

Published: 4/3/2023 | Inventor(s): Eustace Dereniak, Michael Kudenov

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Snapshot Spatial Heterodyne Imaging Polarimetry

A real time imaging Stokes polarimeter that is able to render the full linear polarization profile of a scene without the need for computational support has been designed the University of Arizona. This polarization imaging is achieved through an advanced optical design that requires no moving parts. It uses the full spectral content of a scene to form...

Published: 4/3/2023 | Inventor(s): Michael Kudenov, Michael Escuti

Keywords(s): passive, polarimeter, polarimetry, snapshot, Stokes parameter

Compact Spatial Heterodyne Interferometer

This invention is a novel miniaturized spatial heterodyne interferometers (SHI) design that overcomes problems with thermal effects and also maintains low cost for the infrared regime. This system is a more robust SHI that can be implemented in many wavelength regimes without substantial change to the materials used. The design also has multiple implementations...

Published: 4/3/2023 | Inventor(s): Michael Kudenov

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Ultra-Compact Snapshot Imaging Fourier Transform Spectrometer

This invention is a novel device that answers challenges of increased robustness and faster acquisition time. This new device has no moving mechanical parts, mounts directly onto the focal plane imaging array, and acquires both the spectral and spatial information at once. Thus, this new device is significantly more robust than its predecessors in the...

Published: 4/3/2023 | Inventor(s): Michael Kudenov, Eustace Dereniak

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White Light Sagnac Interferometer

This invention is a novel polarization imaging device that is simple, robust, and features a small form factor. As the device compensates for chromaticity, it collects polarization information across a broad optical spectrum. This device produces a distribution map of the Stokes parameters, completely characterizing distribution of polarization states...

Published: 4/3/2023 | Inventor(s): Michael Kudenov

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Compact Snapshot Polarimetry Camera

Researchers at The University of Arizona and Hokkaido University have developed a means for polarimetric analysis that completes a full polarimetric analysis in a single measurement without any moving parts. Using a combination of two pairs of Savart Plates with a half-wave plate between them, light passing through this system creates an interference...

Published: 4/3/2023 | Inventor(s): James Schwiegerling, Eustace Dereniak, Michael Kudenov, Haitao Luo, Kazuhiko Oka, Edward Dehoog

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Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry