Plasmon‐Assisted Self‐Encrypted All‐Optical Memory

• DOI: 10.1002/adfm.202208561
• Publication Date: 2022-11-20T16:54:37Z
• Authors: Chengyun Zhang; Min Ji; Xilin Zhou; Xiaohu Mi; Huan Chen; Baobao Zhang; Zhengkun Fu; Zhenglong Zhang; Hairong Zheng
• Keywords: Nanomaterials

Abstract All‐optical responsive nanomaterials, which can rapidly switch between two stable states, have been regarded as the next‐generation memories due to their potential realize binary information storage and implement on‐chip, integrated photonic neuromorphic systems. Rare earth oxides are preeminent candidates owing extraordinary luminescent stability narrow optical transitions. However, lack of simple effective switches, it is difficult all‐optical data storage, encoding, retrieval by pure rare earth‐doped nanoparticles. Here, a rapid high‐contrast 10 4 switching Y 2 O 3 :Eu 3+ nanoparticle enhancement quenching states achieved employing strong light confinement ultrafast thermal response localized surface plasmon resonance. A self‐encrypted memory presented with writing, encryption, reading, re‐writing, high‐sensitivity synaptic emitters frequency intensity flux, be harnessed encrypt flows promote convenient high‐security encryption. Such secure plasmonic thermally assisted self‐encrypting paves way for constructing high‐performance stimuli‐responsive oxide crystals on demand expanding applications in various anti‐counterfeiting, rewritable colouration devices.