Reconfigurable dual-mode optical encryption enabled by block copolymer photonic crystal with micro-imprinted holographic metasurface

Seungsoo Mun, Tae Hyun Park, Jin Woo Oh, Taebin Kim, Kyuho Lee, Chang Eun Lee, HoYeon Kim, Jong Woong Park, Seung‐Bae Jeon, Du Yeol Ryu, Sanghoon Cheon, Yong-Hae Kim, Seung‐Yeol Lee, Chi‐Sun Hwang, Joo Yeon Kim, Cheolmin Park