Siemens Aktiengesellschaft

Other

Hubert Grosse-Wilde

Hans Krueger

Wolfgang Welsch

Fritz Pohl

Jorg Kieser

Wilfried Jaehner

Norbert Wenzel

Wilfried Haas

Reinhard Steger

Wolfgang Kruger

Gert Vogel

Till Keesmann

A field emission cathode device consisting of an electrically conducting material and with a narrow, rod-shaped geometry or a knife edge, to achieve a high amplification of the electric field strength is characterized in that the electron-emitting part of the field emission cathode at least partly has preferred cylindrical host molecules and/or compounds with host compounds and/or cylindrical atomic networks, possibly with end caps with diameters measuring in the nanometer range.

Field emission cathode

Variable high-current resistor, especially for use as protective element

A method for manufacturing a stripline laser which is composed of a plurality of constituent parts assembled together with at least two of the parts being soldered to one another, characterized by the step of soldering being by a soft solder, subsequently cleaning the interior of the assembled laser by subjecting it to the influence of a plasma treatment, continuing the plasma treatment to passivate the interior surfaces of the assembled parts of the laser, and limiting the temperature of the parts joined together by the soft solder to, at most, 150.degree. during each of the plasma treatments. The method is particularly suitable for utilization to form a CO.sub.2 stripline laser, and includes adding a CO.sub.2 gas during the second or continued plasma treatment for passivating the surfaces by saturating them with CO.sub.2.

Method for manufacturing a stripline laser

Gas lasers, in particular CO.sub.2 lasers

Growing community of inventors

Neunkirchen, Germany

Hubert Grosse-Wilde