Laser-printed emissive metasurface as an optical security platformMyeongkyu Lee, Dongkyun Kang, Jungwoo Pyo, Jaehyeong Kim, Yinhyui Joo and Jongyun JeonEPJ Web Conf., 287 (2023) 05030DOI: https://doi.org/10.1051/epjconf/202328705030