A Photostimulated BaSi2O5:Eu2+,Nd3+ Phosphor‐in‐Glass for Erasable‐Rewritable Optical Storage Medium

Up‐to‐date optical storage technology calls for large memory capacity, expanded storage dimension, rewritable capability, low cost, and high energy efficiency, which poses stringent requirements on the storage medium. In this study, a novel BaSi2O5:Eu2+,Nd3+ photostimulated luminescence (PSL) phosph...

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Bibliographic Details
Published in:Laser & photonics reviews 2019-04, Vol.13 (4), p.n/a
Main Authors: Lin, Shisheng, Lin, Hang, Huang, Qingming, Cheng, Yao, Xu, Ju, Wang, Jiaomei, Xiang, Xiaoqiang, Wang, Congyong, Zhang, Liqiang, Wang, Yuansheng
Format: Article
Language:English
Subjects:
Binary codes
Binary data
CD rewritable
Decoding
Energy storage
Europium
Glass
Infrared lasers
Light irradiation
Multiplexing
optical data storage
Optical properties
Phosphors
phosphor‐in‐glass
photostimulated luminescence materials
rare‐earth‐doped materials
trap properties
Ultraviolet radiation
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Summary:Up‐to‐date optical storage technology calls for large memory capacity, expanded storage dimension, rewritable capability, low cost, and high energy efficiency, which poses stringent requirements on the storage medium. In this study, a novel BaSi2O5:Eu2+,Nd3+ photostimulated luminescence (PSL) phosphor is developed and then made into phosphor‐in‐glass (PiG) storage medium. Upon ultraviolet light irradiation (write‐in), the generated electrons are captured by the traps, which can be further released by thermal or near‐infrared laser stimulation (read‐out). An insightful investigation is carried out to establish the relationship between trap properties and PSL performance. Demonstration application confirmed the intensity‐multiplexing optical information (including the designed bar code, quick response (QR) code, graphic patterns, and binary data) encoding/decoding. Remarkably, BaSi2O5:Eu2+,Nd3+ PSL PiG show excellent erasable‐rewritable capability thanking to the admirable anti‐ultraviolet property in glass host, as well as good optical data retention ability owing to the spatially isolated deep traps. Hopefully, the present work can push forward the research progress of PSL material and its practical application in optical storage. Novel photostimulated luminescence material, BaSi2O5:Eu2+,Nd3+ phosphor‐in‐glass, with isolated deep traps, is demonstrated as an efficient erasable‐rewritable optical storage medium.
ISSN:1863-8880
1863-8899
DOI:10.1002/lpor.201900006