DataVXAdvanced MaterialsPaper
journal article·2019-09

Random Organic Nanolaser Arrays for Cryptographic Primitives

Jiangang Feng, Wen Wen, Xiao Wei, Xiangyu Jiang, Moyuan Cao, Xuedong Wang, Xiqi Zhang, Lei Jiang, Yuchen Wu

Advanced Materials· Volume 31· Issue 36
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Source abstract

Abstract

Abstract Next‐generation high‐security cryptography and communication call for nondeterministic generation and efficient authentication of unclonable bit sequences. Physical unclonable functions using inherent randomness in material and device fabrication process have emerged as promising candidates for realizing one‐way cryptographic systems that avoid duplication and attacks. However, previous approaches suffer from the tradeoffs between low‐efficiency fabrication and complicated authentication. Here, all‐photonic cryptographic primitives by solution printing of organic nanolaser arrays with size‐dependent dual lasing emission are reported. The stochastic distribution of organic solution into discrete capillary bridges, triggered by high‐rate solvent evaporation, on a periodic topographical template yields organic single crystals with regulated position, alignment, and random size, which ensures high entropy. Stimulated emission from different vibrational sublevels and the intrinsic self‐absorption effect permit size‐dependent dual‐wavelength lasing emission at wavelengths of 660 and/or 720 nm, which can be efficiently encoded into quaternary cryptographic keys with high reliability. High entropy, solution‐processed programming and all‐photonic authentication of random organic nanolaser arrays facilitate their cryptographic implementation in secure communication with high throughput, efficiency, and low cost.
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Research context

Nanomaterials

OpenAlex topics: Physical Unclonable Functions (PUFs) and Hardware Security · Quantum-Dot Cellular Automata · Advanced Memory and Neural Computing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Bioinspired Smart Interfacial Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China

Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore

CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China

State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China

School of Chemical Engineering and Technology State Key Laboratory of Chemical Engineering Tianjin University Tianjin 300072 P. R. China

Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices Institute of Functional Nano and Soft Materials (FUNSOM) Soochow University Suzhou Jiangsu 215123 P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality · Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province

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