Affiliation:
1. Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
2. University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 P. R. China
4. National & Local United Engineering Laboratory of Flat Panel Display Technology Institute of Optoelectronic Display College of Physics and Information Engineering Fuzhou University Fuzhou Fujian 350108 P. R. China
Abstract
Abstract3D optical storage, spatially expanding storage capacity, is regarded as an effective and economical way to break the diffraction limit of the conventional 2D optical storage. In this study, a new kind of 3D optical storage medium, i.e., vanadium ions (V5+) doped sodium borate glass, is developed, showing intriguing spatially‐selected photochromism (PC) upon laser driven excitation. Significantly, a brand‐new PC mechanism of V5+‐aggregation regulated by localized optical basicity (OB) of glass is proposed and demonstrated. The developed PC glass is responsive to a low‐price desktop‐level mini‐laser to encode optical information, yields unique twofold decoding modes in bright‐ and dark‐fields, and shows good data erasibility. 3D volumetric optical storage with a memory density of ≈480 Mbit cm−3 is realized with the aid of an advanced femtosecond laser micro‐machining system. The findings suggest a novel design approach to fabricate 3D PC glass in terms of manipulating the scale of optical basicity in glass, hopefully stimulating the development of new multi‐dimensional PC optical storage media.
Funder
National Natural Science Foundation of China
Science Fund for Distinguished Young Scholars of Fujian Province
Natural Science Foundation of Fujian Province
Subject
Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
10 articles.
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