Polarization-based coding/encryption using organic charge-transfer materials

DWPI Title: Reading optical code involves encoding grayscale image intended to be viewed with chosen angle of linearly polarized light in organic charge-transfer film, providing film comprises organic charge-transfer material, and writing pattern
Abstract: A charge-transfer material enables patterning approach where the polarization angle in stand-alone films can be precisely defined at the single pixel level and reconfigured following initial alignment. This capability enables new routes for non-binary information storage, retrieval, and intrinsic encryption, and it suggests future technologies such as photonic chips that can be reconfigured using non-contact patterning.
Use: Method for reading optical code.
Advantage: The method enables to read optical code that improves performance.
Novelty: Reading optical code involves encoding grayscale image intended to be viewed with chosen angle of linearly polarized light in organic charge-transfer film, providing film comprises organic charge-transfer material, and writing pattern within the film with optical source. The pattern comprises two different dichroic regions. The two different dichroic regions is written with different write angle and illuminated the film with linearly polarized light at the chosen angle and viewed the light transmitted through the film to reveal the encoded grayscale image.
Filed: 1/21/2021
Application Number: US17154220A
Tech ID: SD 15513.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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