Volume 18, Issue 1 2300744
Research Article

Photochromic 3D Optical Storage: Laser-Induced Regulation of Localized Optical Basicity of Glass

Xuefeng Li

Xuefeng Li

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

University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Yaman Wu

Yaman Wu

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

University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Hang Lin

Corresponding Author

Hang Lin

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

Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108 P. R. China

E-mail: [email protected]; [email protected]

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Gengxu Chen

Gengxu Chen

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

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Yanxue Hao

Yanxue Hao

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

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Pengfei Wang

Pengfei Wang

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

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Shisheng Lin

Shisheng Lin

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

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Ju Xu

Ju Xu

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

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Yao Cheng

Yao Cheng

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

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Yuansheng Wang

Corresponding Author

Yuansheng Wang

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

E-mail: [email protected]; [email protected]

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First published: 15 October 2023
Citations: 5

Abstract

3D 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.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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