Abstract: Exothermic reactions at elevated temperatures in high rate non-aqueous active metal electrochemical cells which include an alkali metal anode, an electrolyte system including an electrolyte salt dissolved in a non-aqueous solvent depolarizer, by the provision of a reaction limiting positive electrode material which includes an amount of carbon black, an amount of binder and an amount of ceramic material, said ceramic material being substantially unreactive with other cell species below a predetermined temperature but capable of reacting to form substantially inactive products with the metal of the anode material at or above the predetermined temperature.

Abstract: A container for a non-aqueous electrochemical cell is molded from a partially hologenated alkaline polymer and has integral electrical leads and vents.

Abstract: A distributed feedback optical device using a single crystal boule prepared with periodic spatial striations of ternary Pb.sub.1-x Sn.sub.x Te and Yb impurity atoms forming a layered array of planar p-n junctions normal to the axis of light emission. Crystal surfaces parallel to the axis are coated with a reflective, electrical insulator. Free scattering losses are minimized by applying a magnetic field along the longitudinal axis.

Abstract: A superheterojunction (SHJ) laser constructed from periodic structural semiconductor materials. The SHJ laser has approximately a thousand junctions which are planar and layered to provide gain in the plane of the layers. In addition, the device allows beam narrowing and beam steering of its output signal due to the multiple number of output sources with the ability to control the output phase of the combined sources.