We show that mechanically stressed nanomembranes can be used to introduce sufficient tensile strain in Ge to transform it into a direct-bandgap, efficient light-emitting material that can support population inversion and thus provide optical gain.
Jose Sanchez-PerezÇiçek BoztuğFeng ChenF. F. SudradjatDeborah M. PaskiewiczRB JacobsonM. G. LagallyRoberto Paiella
Roberto PaiellaÇiçek BoztuğJose Sanchez-PerezJian YinM. G. Lagally
Çiçek BoztuğJose Sanchez-PerezF. F. SudradjatRB JacobsonDeborah M. PaskiewiczM. G. LagallyRoberto Paiella