Compressible photonic crystal-based authentication device

Details Compressible photonic crystal-based authentication device Compressible photonic crystal-based authentication device

G - Physics

02

B

G02B 5/00 (2006.01) B42D 15/10 (2006.01) B44F 1/12 (2006.01) G02B 1/04 (2006.01) G02B 17/00 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2743985

A security and/or authentication device comprising: a compressible photonic crystal having an ordered array of voids, the photonic crystal having a reflection peak, wherein compression against at least a portion photonic crystal results in a decrease of intensity of the reflection peak in at least that portion.

La présente invention concerne un dispositif de sécurité et/ou d'authentification comprenant un cristal photonique compressible comportant un réseau ordonné de vides, le cristal photonique présentant un pic de réflexion, une compression d'au moins une partie du cristal photonique entraînant une diminution de l'intensité du pic de réflexion au moins dans cette partie.

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