Metal−Organic Framework-Based Ultrafast Logic Gates for High-Security Optical Encryption  

作　　者：Junhong Yu Yadong Han Longyu Wang Yibing Liu Hang Zhang Xuan Chen Xuezhi Liu Zhengbang Wang Jianbo Hu 

机构地区：[1]Laboratory for Shock Wave and Detonation Physics,Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900,China [2]State Key Laboratory for Environment-Friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China. [3]Key Laboratory for the Green Preparation and Application of Functional Materials Ministry of Education,Hubei Key Laboratory of Polymer Materials,School of Materials Science and Engineering,Hubei University,Wuhan 430062,China

出　　处：《Ultrafast Science》2023年第4期35-42,共8页超快科学（英文）

基　　金：supported by Science Challenge Project(no.TZ2018001);National Natural Science Foundation of China(nos.11872058 and 21802036);Project of State Key Laboratory of Environment-friendly Energy Materials,and Southwest University of Science and Technology(21fksy07).

摘　　要：Optical logic gates call for materials with giant optical nonlinearity to break the current performance bottleneck.Metal–organic frameworks(MOFs)provide an intriguing route to achieve superior optical nonlinearity benefitting from structural diversity and design flexibility.However,the potential of MOFs for optoelectronics has been largely overlooked and their applications in optical logic have not been exploited.Here,through temporally manipulating the nonlinear optical absorption process in porphyrin-based MOFs,we have successfully developed AND and XOR logic gates with an ultrafast speed approaching 1 THz and an on–off ratio above 90%.On this basis,all-optical information encryption is further demonstrated using transmittance as primary codes,which shows vast prospects in avoiding the disclosure of security information.To the best of our knowledge,this is the first exploration of MOFs for applications in ultrafast optical logic devices and information encryption.

关 键 词：Metal-organic framework Ultrafast Logic gate Optical Encryption Nonlinear optics Carrier dynamics 

分 类 号：O43[机械工程—光学工程]