Photon energy conversion and management in SrAl12O19: Mn2+, Gd3+ for rewritable optical information storage

Dynamic readout of optical information based on the color-tunable emitting electron-trapping material BaAl12O19:Eu2+ toward high security level optical data storage and anticounterfeiting

“…S11, ESI†), indicating that it has an excellent ODS capacity. 31–33 The LPL decay curve of R-BaAl 12 O 19 :Eu 2+ is shown in Fig. 4c, the LPL initial brightness was 0.00444 cd m −2 , although the duration is about 8 minutes.…”

Mn2+-Activated Photostimulable Persistent Nanophosphors by Pr3+ Codoping for Rewritable Information Storage

“…As a proof of concept, secondary write-in of PSL is shown in Figure . The write-in process can be divided into three basic procedures (Figure a): ,, empty traps by heating/light (erasing process), recharging and aging process (write-in), and secondary optical signal write-in (read-out). As shown in Figure a, the pattern (with emptied trap) exposure under UV light undergoes a recharging process accompanied with a green PL pattern (primary optical signal write-in under 365 nm excitation).…”

“…Unfortunately, the storage PSL nanophosphors generally suffer from low PSL intensity and duration, which restricts their further development and application. To improve the intensity and duration of PSL, the trap with a depth of around 0.8–1.6 eV is necessary to record information at room temperature for an adequately long duration. − Cation doping is a general strategy to tune the trap depth of PersL nanophosphors. − …”

Bi3+/Sm3+ co-doped LiTaO3 photochromic perovskites: an ultrafast erasable optical information storage medium

“…Optical storage technology has attracted a lot of research attention due to its advantages such as sustainability, high storage density, a long storage life, non-contact reading and writing and erasing. [1][2][3][4][5][6][7] Under specific light irradiation conditions, photochromic materials can undergo specific chemi-cal reactions that result in a change in the material's color or absorption peak of light. The initial state can be restored by heating or exposure to another wavelength of light.…”