&lt;title&gt;Advanced optical storage phosphor materials for erasable and rewritable optical memory utilizing photostimulated luminescence&lt;/title&gt;

Nanto, Hidehito; Sato, Tomoyuki; Miyazaki, Makoto; Imai, Atushi; Komori, Hironobu; Douguchi, Yoshiteru; Kusano, Eiji; Nasu, Shōichi; Kinbara, Akira

doi:10.1117/12.370240

Cited by 8 publications

(2 citation statements)

References 2 publications

(2 reference statements)

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“…The stored energy can then be liberated by thermal, optical or other physical stimulations, resulting in stimulated emissions from the emitting centers in the phosphors. Storage phosphors, especially the thermally stimulated storage phosphors whose energy is released upon heating (including the thermal energy available at room temperature) based on thermoluminescence45678 and photostimulable storage phosphors whose energy is released by low-energy light (photon) illumination based on photostimulated luminescence (PSL; also called as optically stimulated luminescence, OSL)129101112, have found a plethora of important applications, e.g., as self-sustained night-vision luminescent materials and in the fields of dosimetry and x-ray imaging.…”

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confidence: 99%

Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8

Liu

Yan

Chuang

et al. 2013

Sci Rep

435

301

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In conventional photostimulable storage phosphors, the optical information written by x-ray or ultraviolet irradiation is usually read out as a visible photostimulated luminescence (PSL) signal under the stimulation of a low-energy light with appropriate wavelength. Unlike the transient PSL, here we report a new optical read-out form, photostimulated persistent luminescence (PSPL) in the near-infrared (NIR), from a Cr3+-doped LiGa5O8 NIR persistent phosphor exhibiting a super-long NIR persistent luminescence of more than 1,000 h. An intense PSPL signal peaking at 716 nm can be repeatedly obtained in a period of more than 1,000 h when an ultraviolet-light (250–360 nm) pre-irradiated LiGa5O8:Cr3+ phosphor is repeatedly stimulated with a visible light or a NIR light. The LiGa5O8:Cr3+ phosphor has promising applications in optical information storage, night-vision surveillance, and in vivo bio-imaging.

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mentioning

confidence: 99%

Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8

Liu

Yan

Chuang

et al. 2013

Sci Rep

435

301

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“…Optically stimulated luminescence (OSL) relies on stimulated relaxation when the pre-excited material with metastable trapped charge carriers turns back to the thermodynamic equilibrium upon external light irradiation. − The unique feature of controllable storage and release of charge carriers promises application in erasable ODS. This concept was successfully implemented earlier by utilizing OSL of rare-earth doped alkaline (-earth) halides or sulfides. − However, the applications were ultimately constrained to only X-ray storage and limited due to the intrinsically inferior moisture resistance. In recent years, rear-earth and transition-metal ions doped chemically stable metallic oxy-salts have attracted keen attention due to their excellent OSL for ODS (write-in with UV/blue light).…”

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confidence: 99%

Tailoring Multidimensional Traps for Rewritable Multilevel Optical Data Storage

Liu¹,

Yuan²,

Jin

et al. 2019

ACS Appl. Mater. Interfaces

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In the current "big data" era, the state-of-theart optical data storage (ODS) has become a front-runner in the competing data storage technologies. As one of the most promising methods for breaking the physical limitation suffered by traditional ones, the advance of optically stimulated luminescence (OSL) based optical storage technique is now still limited by the simultaneous singlelevel write-in and readout in a same spot. In this work, to bridge the data-capacity gap, we report for the first time a novel and promising nonphysical multidimensional OSLbased ODS flexible medium for erasable multilevel optical data recording and reading. We tailor multidimensional traps with discrete, narrowly distributed energy levels through (multi-)codoping of selective trivalent rare-earth ions into Eu 2+ -activated barium orthosilicate (Ba 2 SiO 4 ). Upon UV/blue light illumination, information can be sequentially recorded in different traps assisted by thermal cleaning with an increase of storage capacity by orders of magnitude, which is addressable individually in the whole domain or bit-by-bit mode without the crosstalk by designed thermal/optical stimuli. Remarkably, good data retention and robust fatigue resistance have been achieved in recycle data recording. Insight is forged from charge carrier dynamics and interactions with traps for a universal method of data storage, and proof-of-concept applications are also demonstrated, thereby providing the way to not only rewritable multilevel ODS but also high-security encryption/decryption.

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Optically Stimulated Luminescence Phosphors: Principles, Applications, and Prospects

Yuan

Jin

et al. 2020

Laser & Photonics Reviews

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Optically stimulated luminescence (OSL) materials, enabling energy storage by capturing of charge carriers and then the energy conversion to light via photostimulation, can find many advanced applications in various fields, spanning from radiation dosimetry, optical data storage and security, environmental monitoring, biomedicine, clinical diagnostic, to archaeology and geology. At present, there are some blocks, including the development of nanocrystallization approaches, the tailoring of optical transitions, the control of trap distribution, and the understanding of OSL mechanisms, on the road to the exploration of OSL materials. This review gives an overview of the design, preparation, characterization, optimization, application, mechanism, and prospect of OSL materials. A short introduction of the fundamental principle and history of OSL materials is presented, followed by a summary of preparation and design methods, and a survey of OSL materials reported to date. The trap engineering, mechanism, and study methodologies of OSL are summarized, after which the widespread applications of OSL materials, in traditional and newly emerging fields, are reviewed. Finally, the merits and drawbacks of the OSL materials according to the relevant reports currently available are examined. The challenges and outlooks are highlighted and discussed in terms of five important aspects that merit future research.

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<title>Advanced optical storage phosphor materials for erasable and rewritable optical memory utilizing photostimulated luminescence</title>

Cited by 8 publications

References 2 publications

Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8

Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8

Tailoring Multidimensional Traps for Rewritable Multilevel Optical Data Storage

Optically Stimulated Luminescence Phosphors: Principles, Applications, and Prospects

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