Toward Optical Authentication with Laser-induced Periodic Surface Structures on Metals

Taek Yong Hwang; Jongweon Cho; Yong-dae Kim; Tae Hoon Park; Tae Hoon Park; Jeongjin Kang; Byounghwak Lee

doi:10.1364/CLEO_AT.2023.JTu2A.11

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper JTu2A.11
•https://doi.org/10.1364/CLEO_AT.2023.JTu2A.11

Toward Optical Authentication with Laser-induced Periodic Surface Structures on Metals

Taek Yong Hwang, Jongweon Cho, Yong-dae Kim, Tae Hoon Park, Jeongjin Kang, and Byounghwak Lee

CLEO: Applications and Technology 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Joint Poster Session I (JTu2A)

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T. Y. Hwang, J. Cho, Y. Kim, T. H. Park, J. Kang, and B. Lee, "Toward Optical Authentication with Laser-induced Periodic Surface Structures on Metals," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper JTu2A.11.

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Abstract

By constructing structurally colorized images on metals with femtosecond laser-induced periodic structures (fs-LIPSSs), we demonstrate the color variations of fs-LIPSSs with a broad angular range of illumination incidence can be used for optical authentication.

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