TY - JOUR T1 - Electromagnetic Casimir Energies of Semi-Infinite Planes JF - EPL (Europhysics Letters) Y1 - 2011 A1 - Mohammad F. Maghrebi A1 - Noah Graham AB - Using recently developed techniques based on scattering theory, we find the electromagnetic Casimir energy for geometries involving semi-infinite planes, a case that is of particular interest in the design of microelectromechanical devices. We obtain both approximate analytic formulae and exact results requiring only modest numerical computation. Using these results, we analyze the effects of edges and orientation on the Casimir energy. We also demonstrate the accuracy, simplicity, and utility of our approximation scheme, which is based on a multiple reflection expansion. VL - 95 U4 - 14001 UR - http://arxiv.org/abs/1102.1486v1 CP - 1 J1 - EPL U5 - 10.1209/0295-5075/95/14001 ER -