Our VECSEL makes the cover of IEEE Journal of Selected Topics in Quantum Electronics for Nov/Dec 2017. This issue contains our paper “Terahertz metasurface quantum-cascade VECSELs: theory and performance,” authored by L. Xu, C. A. Curwen, D. Chen, J. L. Reno, T. Itoh, and B. S. Williams, in which we lay out the fundamental theory for design of THz QC-VECSELs. https://doi.org/10.1109/JSTQE.2017.2693024