Using the quick search there are shown up to three reports about GaAs VCSELs:
With this technique, it becomes possible to make foils that sense changes in pressure. Such sensing, skin-like foils could be used for monitoring irregular or moving surfaces, e.g. in robots, pliable ...
Physik Astronomie |Using the fulltext-search for the word GaAs VCSELs you can set up serveral searching-options > choose search options