Our paper, discussed in details here: https://mkschmidtphysics.blog/2023/08/03/preprint-on-the-experimental-realisation-of-brillouin-memory-with-ultra-short-pulses-on-the-arxiv/
is now published in npj Nanophotonics 1, 5 (2024).
Paper on Brillouin memory with short pulses published in njp Nanophotonics
Mikołaj K. Schmidt 