Disclosed is semiconductor structure with an insulator layer on a semiconductor substrate and a device layer is on the insulator layer. An optical probe beam with a pre-determined polarization is split into two components, with constant dynamic phase difference. The receiver includes: a first interface; a second interface coupled to a device to be charged; and a connection circuit between a terminal of the first interface and a terminal of the second interface, wherein the connection circuit is conductive when the voltage across these terminals is of a first polarity, and a second polarity otherwise. The distal member has a base to which the rods are rotatably connected by orthogonal linkage assemblies. The design also reduces the friction between the cylinder walls and piston and the friction associated with typical engines valvetrain components, improving the overall efficiency of the engine.