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

International audience; In the current big data era, the state-of-the-art optical data storage has become a frontrunner in the competing data storage technologies. In this work, we proposed an information storage prototype using optical stimulated luminescent phosphor of SrAl 12 O 19 : Mn 2+ , Gd 3+ , which converts the photon into trapped electrons and partial releases them in a form of luminescence when it is irradiated by infrared irradiation, rendering an optical information storaging ability. The information storage can be realized in both graphical and digital format. In this way, graphical patterns can be stored and rejuvenated by infrared irradiation, and a set of digital data is recorded step by step by a home-make decoding system, completing an optical data reading process. This work provides a practical example for future application of writing-storingreadout-erasing-rewriting integrated optical information storage.