Nanomemory

Writing about nanowires that exhibit memory effects. When light containing information hits it, this nanowire can, in some cases, absorb the light and keep part of the information in the energetic levels (excitations) of its atoms for some time – and then reemit the light back. In other cases, it has no memory effects. Having or not having memory can be controlled with the incident light – and this is the major achievement of a research made in Brazilian and Cuban universities and published last year. Slowly we see the pieces of nanoscale artifacts being thought, built and put together!