Abstract
Conference Title: 2018 Conference on Lasers and Electro-Optics (CLEO) Conference Start Date: 2018, May 13 Conference End Date: 2018, May 18 Conference Location: San Jose, CA, USA We observe Bloch oscillations and Landau-Zener-tunneling at Dirac points in photonic graphene. The non-adiabatic wave dynamics depend anisotropically on the direction of an applied index gradient, resulting in imperfect Landau-Zener-tunneling and valley-dependent vortex generation.