Geon Gug Yang, Seong-Gyun Im, Taewoo Kang, Chan Woo Lee, Jonghwa Shin, Seok Joon Kwon, Sang Ouk Kim. "Dual-space visible light authentication toward high security physical unclonable function." Nature Communications (2026). https://doi.org/10.1038/s41467-026-75781-4