Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors

Lu Chen; Xueqing Liu; Feng Liu; Chuan Liao; Liangliang Zhang; Jiahua Zhang; Xiao-jun Wang; Yichun Liu

doi:10.1038/s41377-025-01746-9

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Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors

Original Articles

- Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors
- Light: Science & Applications Vol. 14, Issue 4, Pages: 1051-1060(2025)
- Affiliations：
  
  1.Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 130024 Changchun, China
  2.State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130023 Changchun, China
  3.Department of Physics, Georgia Southern University, Statesboro, GA 30460, USA
- Author bio：
  
  Feng Liu (fengliu@nenu.edu.cn)
  Xiao-jun Wang (xwang@georgiasouthern.edu)
  Yichun Liu (ycliu@nenu.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01746-9
  CLC：
- Received：03 September 2024，
  
  Revised：31 December 2024，
  
  Accepted：2025-01-04，
  
  Published Online：04 March 2025，
  
  Published：30 April 2025
- Accepted：
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Chen, L. et al. Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors. Light: Science & Applications, 14, 1051-1060 (2025).
DOI：

Chen, L. et al. Unlocking the potential of up-conversion charging for rapid and high-resolution optical storage with phosphors. Light: Science & Applications, 14, 1051-1060 (2025). DOI： 10.1038/s41377-025-01746-9.

摘要

Abstract

Current optical storage technologies utilizing phosphor media face challenges in achieving rapid and precise data recording with visible or infrared light

primarily due to the con

straints of traditional charging techniques. Here

we introduce a cutting-edge method termed up-conversion charging (UCC) to address these challenges

enabling rapid and high-resolution data storage in phosphors. Our study focuses on the unique two-step ionization and non-linear charging characteristics of UCC in storage phosphors

specifically in a gallate composition Gd

:Cr

. Remarkably

this technique enables data writing with high solution

requiring only 0.01 s of exposure per bit when utilizing a portable laser engraver equipped with visible-emitting diode lasers. The present strategy not only enhances recording efficiency but also ensures long-term data retention and superior rewritability. Moreover

we illustrate the versatility of UCC storage across various material systems through thermally- and optically-stimulated luminescence. Our outcomes highlight the transformative potential of the UCC method in advancing optical storage applications

offering significant improvements in the development of information storage solutions.

关键词

Keywords

references

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