公开(公告)号：US20250002787A1

公开(公告)日：2025-01-02

申请号：US18829062

申请日：2024-09-09

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： DONG KI YOON ,  GEONHYEONG PARK ,  HYEWON PARK

IPC: C09K19/24 ,  C09K19/20 ,  G02B6/02

Abstract: A structure for a physical unclonable function using spontaneous chiral symmetry breaking and a method of preparing the same are described, in which a chiral random pattern, which is unclonable and is observable with an optical microscope and a mobile phone camera, is formed using chiral photonic crystals in which chiral symmetry breaking occurs and is applied to a physical unclonable function (PUF), thereby attaining high encoding capacity, high recognition rate, and security while achieving high performance in reproducibility, uniqueness, unpredictability, and reconfigurability, and forming a desired pattern through a conventional photolithography method.

公开(公告)号：US20230193134A1

公开(公告)日：2023-06-22

申请号：US18065696

申请日：2022-12-14

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： DONG KI YOON ,  GEONHYEONG PARK ,  HYEWON PARK

IPC: C09K19/24 ,  G02B6/02

CPC classification number: C09K19/24 ,  G02B6/02309 ,  C09K2019/2078 ,  G02B2207/117

Abstract: The present invention relates to a structure for a physical unclonable function using spontaneous chiral symmetry breaking and a method of preparing the same, in which a chiral random pattern, which is unclonable and is observable with an optical microscope and a mobile phone camera, is formed using chiral photonic crystals in which chiral symmetry breaking occurs and is applied to a physical unclonable function (PUF), thereby attaining high encoding capacity, high recognition rate, and security while achieving high performance in reproducibility, uniqueness, unpredictability, and reconfigurability, and forming a desired pattern through a conventional photolithography method.