POET Technologies Inc (PTK)

[sevenOdouble]

(Scroll all the way to see all the different applications that can be made with GaAs:)
http://www.google.be/search?tbm=isch&hl=en&source=hp&biw=1360&bih=647&q=gallium+arsenide+crystal+structure&gbv=2&oq=Gallium+Arsenide&aq=4&aqi=g6g-m1g-S3&aql=&gs_sm=c&gs_upl=2302l2302l0l10391l1l1l0l0l0l0l186l186l0.1l1l0