Hacking detection based on the elastic properties of liquid crystals in different phases
Abstract
We present a security device that can detect and block hacking using the characteristics of liquid crystals. This device is based on a liquid crystal cell consisting of a uniformly aligned layer and a photo-alignment layer. To inscribe a pattern, the device is illuminated when the liquid crystal is in the smectic phase. The resulting image is invisible after light irradiation. Heating to the nematic phase improves this alignment and reveals the...
Paper Details
Title
Hacking detection based on the elastic properties of liquid crystals in different phases
Published Date
Nov 10, 2021
Journal
Volume
29
Issue
24
Pages
39352 - 39352
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