The heat capacity laser concept is extended to systems in which the heat capacity lasing media is a liquid. Such a laser steering assembly may include a mirror array having a pair of independently controlled mirrors. The cam shaft does not complete a full rotation during the oscillation. The light that is reflected off of the surface strikes the internal wall of the prism to undergo total internal reflection within the prism. The invention allows the stacks to be of the same design and this reduces manufacturing costs. The semiconductor arrangement further includes a normally-off JFET having a channel region of the first conductivity type that is coupled between the source electrode and the drift region and extends adjacent the body region so that a p-n junction is formed between the body region and the channel region.