Yes,,,currently...there are many commercialized retort pouch and food packaging using nano-AlOx for barrier. AlOx can replace traditional Alu-layer. The benefit is transparent layer while maintain the barrier properties.
At present, there are two main vacuum deposition processes used for the production of AlOx clear barrier coating. These are:
a. Reactive thermal evaporation of aluminium with oxygen.
b. Plasma assisted deposition.
You can surf from google, there are many based-film can be applied.
** this below article studied about comparing the performace of traditional retort pouch and AlOx/PET for salmon. Wish you find the answer ^^