Using light to suspend/ engrave 3D images inside a hand-held acrylic cube, erasable/ reusable using heat or light

https://phys.org/news/2024-08-technology-engrave-erasable-3d-images.html

"imprints high-resolution 2D (numerous stacked), 3D, or animated images inside any translucent polymer, ranging from thin films to 6" thick, containing photosensitive azobenzene acting as a switch, reacting to red light paired with boron difluoride, enhancing switch's optics... heat or blue light erases it.,, projector illuminates treated polymer from different angles with various light patterns... photosensitive chemical activated where these patterns intersect, producing 3D patterns... medical scans, architecture, education, art"