[8p-C212-1~16] 3.1 Basic optics and frontier of optics

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-C212-2] Unclonable Anti-Counterfeit Labels Using Mie-Resonant Silicon Nanoparticles

〇Daichi Yokoi¹, Hiroshi Sugimoto¹, Minoru Fujii¹ (1.Kobe Univ)

Keywords:

Silicon nanoparticle,Anti-counterfeiting,Structural color

This study reports on the application of self-assembled arrays of silicon nanoparticles to anti-counterfeiting labels. Using scalable methods such as imprinting, labels are fabricated by randomly and densely arranging particles that exhibit low-loss and high-saturation Mie resonances. Easy photographic authentication is demonstrated based on 550-nm high-resolution random color patterns. Furthermore, their identification and anti-counterfeiting performances are evaluated, and their efficacy as an unclonable security technology is discussed.