Figure 4
From: Highly efficient thin-film 930 nm VCSEL on PDMS for biomedical applications

Fabrication of the top-emitting 930 nm thin-film VCSELs. (a) An actual image of the fabricated flexible thin-film VCSELs transferred onto PDMS, (b) top-view and (c) cross-sectional FE-SEM image of the fabricated thin-film VCSELs.