title: Invisible photonic printing: computer designing graphics, UV printing and shown by a magnetic field.
abstract: Invisible photonic printing, an emerging printing technique, is particularly useful for steganography and watermarking for anti-counterfeiting purposes. However, many challenges exist in order to realize this technique. Herein, we describe a novel photonic printing strategy targeting to overcome these challenges and realize fast and convenient fabrication of invisible photonic prints with good tenability and reproducibility. With this novel photonic printing technique, a variety of graphics with brilliant colors can be perfectly hidden in a soft and waterproof photonic-paper. The showing and hiding of the latent photonic prints are instantaneous with magnet as the only required instrument. In addition, this strategy has excellent practicality and allows end-user control of the structural design utilizing simple software on a PC.
authors.affiliation: Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, 230026, China.
authors.forename: Haibo
authors.initials: H
authors.lastname: Hu
authors.forename: Jian
authors.initials: J
authors.lastname: Tang
authors.forename: Hao
authors.initials: H
authors.lastname: Zhong
authors.forename: Zheng
authors.initials: Z
authors.lastname: Xi
authors.forename: Changle
authors.initials: C
authors.lastname: Chen
authors.forename: Qianwang
authors.initials: Q
authors.lastname: Chen