Energy storage and luminescence operation analysis

What is photostimulated luminescence (PSL)?

According to these conditions, photostimulated luminescence (PSL), which is a luminescence response to optical stimuli seems to be an ideal candidate . Generally, a PSL material contains emitters for optical detection and deep traps as optical storage units .

What is a good PSL medium for optical storage?

Generally, as an ideal PSL medium material for the optical storage, it should store energy under ultraviolet or near-ultraviolet irradiation and the irradiation energy can be stably stored for a sufficiently long time. Furthermore, under stimulation of infrared or near-infrared laser, it should emit visible light in form of energy release.

Can nanostructured PSL glass be used for optical storage?

Jin and Hu greatly increased the capacity of optical storage by tailoring traps of PSL materials . In 2020, Lin and Wang reported high-density 3D optical storage based on nanostructured PSL glass . However, to date, there have been few reports on optical operation based on a PSL material. Fig. 1.

How can a superresolution microscopy increase optical storage density?

In particular, the near/far superresolution microscopy has been applied to increase the optical storage density by breaking the diffraction limit of light, and optical multiplexing has been introduced to expand the physical dimension of the optical storage medium , .

What is the storage stability of Lu 3 Al 5 O 12 CE 3+ material?

(1) Low storage stability: although the trap depth of the Lu 3 Al 5 O 12 :Ce 3+ material reaches 1.34 eV, which is the material with the deepest trap depth reported so far, the PSL storage stability of the Lu 3 Al 5 O 12 :Ce 3+ material is still insufficient at room temperature, so that it needs to be stored in a low temperature and dark condition.

Can PSL materials perform optical operations?

In fact, PSL materials have the inherent capability of performing optical operations, which are optical realizations of a digital computers . As a typical example, a Boolean logic operations basically consists of two inputs and a single output, where the variables of an expression represent logical 1 and 0 .