In certain embodiments, a microelectromechanical (MEMS) device comprises a
substrate having a top surface, a movable element over the substrate, and
an actuation electrode disposed laterally from the reflective surface.
The movable element comprises a deformable layer and a reflective element
mechanically coupled to the deformable layer. The reflective element
includes a reflective surface. The movable element is responsive to a
voltage difference applied between the actuation electrode and the
movable element by moving in a direction generally perpendicular to the
top surface of the substrate.