CA3146681C - Système d’imagerie ultrarapide sans réinitialisation de pixels actifs - Google Patents

Système d’imagerie ultrarapide sans réinitialisation de pixels actifs

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Publication number
CA3146681C
CA3146681C CA3146681A CA3146681A CA3146681C CA 3146681 C CA3146681 C CA 3146681C CA 3146681 A CA3146681 A CA 3146681A CA 3146681 A CA3146681 A CA 3146681A CA 3146681 C CA3146681 C CA 3146681C
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Canada
Prior art keywords
layer
nano
optical stack
imaging system
pixel
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CA3146681A
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English (en)
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CA3146681A1 (fr
Inventor
Zubin Jacob
Liping Yang
Leif H. Bauer
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Purdue Research Foundation
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Priority claimed from PCT/US2020/043651 external-priority patent/WO2021021690A1/fr
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Abstract

L’invention concerne un système d’imagerie bolométrique comprenant un réseau de nanopixels, comportant tous un empilement optique, comprenant individuellement une couche absorbante au niveau de laquelle un rayonnement incident est converti en chaleur qui agit simultanément comme une première couche d’électrode disposée verticalement adjacente à la couche libre, une couche à polarité magnétique fixe (couche fixe) dans une première direction magnétique, une couche barrière disposée verticalement adjacente à la couche fixe, une couche à polarité magnétique sélective (couche libre) disposée verticalement adjacente à la couche barrière, une seconde couche d’électrode disposée verticalement adjacente à la couche fixe. Les photons absorbés par l’empilement optique sont convertis en chaleur pour ainsi commuter la polarité magnétique dans la couche libre. La commutation de polarité rend inutile la réinitialisation de l’empilement à un état neutre avant une telle commutation. Chaque sortie de nanopixel est un signal numérique généré par des photons au-dessus d’un seuil d’énergie prédéfini. Le système comprend en outre un circuit de lecture.
CA3146681A 2019-07-26 2020-07-26 Système d’imagerie ultrarapide sans réinitialisation de pixels actifs Active CA3146681C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962879051P 2019-07-26 2019-07-26
US62/879,051 2019-07-26
PCT/US2020/043651 WO2021021690A1 (fr) 2019-07-26 2020-07-26 Système d'imagerie ultrarapide sans réinitialisation de pixels actifs

Publications (2)

Publication Number Publication Date
CA3146681A1 CA3146681A1 (fr) 2021-02-04
CA3146681C true CA3146681C (fr) 2025-07-08

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