SIPM Makes Breakthrough in Ultra-large-capacity Super-resolution 3D Optical Storage

Recently, the Shanghai Institute of Optical Precision Machinery, Chinese Academy of Sciences (hereinafter referred to as "Shanghai Institute of Optical Machinery"), chairman of the Shanghai Laser Society, in cooperation with the Shanghai Institute of Technology and other scientific research units, in the ultra-large capacity super-resolution three-dimensional optical storage research breakthrough progress. The research team used the international first dual-beam regulated aggregation-induced luminescence super-resolution optical storage technology, the first time in the information writing and reading out of the experimental breakthrough in the diffraction limit of the limit, the realization of the point size of 54nm, 70nm spacing of the super-resolution of the data storage, and completed a 100-layer multi-layer record, the equivalent capacity of a single disk up to the level of Pb, China's breakthrough in the field of information storage of key core technologies, and achieve the sustainable development of digital economy, the research team has made progress in the research of ultra-large capacity ultra-resolution three-dimensional optical storage. It is of great significance for China to break through the key core technology in the field of information storage and realize the sustainable development of digital economy. The research results were published on February 22, 2024 in the journal Nature. The first author of the paper is Dr. Hao Ruan of Shanghai Institute of Optical Machinery (SIOM), and the corresponding authors are Academician Min Gu, Director of Photonic Chip Research Institute of Shanghai Institute of Technology (SIT), and Prof. Jing Wen of Shanghai Institute of Technology (SIT). Dr. Zhao Miao, a postdoctoral fellow of SIPM, and Prof. Wen Jing of Shanghai Institute of Technology (SIT) are the joint first authors.
In the 1980s, Academician Gan Fuxi of Shanghai Institute of Optical Machinery pioneered the research of digital optical disk storage technology in China, and the research team has been deeply committed to the field of optical storage. Relying on the rich research foundation and innovative technology solutions, based on dual-beam super-resolution technology and aggregation-induced luminescence storage media, in the information writing and reading out have broken through the diffraction limit, realized the point size of 54nm, channel spacing of 70nm super-resolution data storage, and completed a 100-layer multilayer recording, the equivalent capacity of a single disk is about 1.6 Pb. After aging accelerated test, the life of optical disk media After accelerated aging test, the media life of optical disc is more than 40 years, and the fluorescence contrast ratio is still as high as 20.5:1 after accelerated repeated reading. this is the first time to realize the ultra-large-capacity optical storage of Pb scale in the international market, and it has been highly evaluated by the reviewers: "This is a breakthrough innovative Pb-scale optical storage technology..." "Compared with other existing technologies, this technology provides the highest optical storage surface density in terms of performance...""The research results may lead to a breakthrough in data center archival data storage, solving the storage technology challenges of large capacity and energy saving ...".
Everything from optical microscopy to optical storage technology is limited by the optical diffraction limit. Among the 125 most cutting-edge scientific problems in the world released by Science in 2021, breaking the diffraction limit is even higher in the field of physics. The successful development of this super-resolution optical disk breaks through this physics problem in both information writing and reading, which helps our country break through key core technologies in the field of storage, and will play a major role in the big data digital economy to meet the major needs in the field of information industry. In the future, the research team will accelerate the original innovation and key technology research, promote the integration and industrialization of ultra-large-capacity optical storage, and expand its cross-application in the field of optical micro-imaging, optical display, optical information processing, and produce more and more excellent innovative results.