Accession Number : ADD011614

Title :   Optically Triggered Transferred-Electron Device Microwave Burst and Single Pulse Generators.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Carruthers,T F ; Weller,J F ; Taylor,H F

Report Date : 06 Nov 1984

Pagination or Media Count : 11

Abstract : Transferred-electron device (TED) microwave burst and single pulse generators which are triggered by pico-second optical pulses. The burst generator includes a TED having a cathode, an anode, and a gate electrode positioned therebetween, all located on a semiconductor substrate. An optical pulse applied to the substrate between the gate and anode electrodes causes a plurality of space charge domains to sequentially travel from the gate to the illuminated region thereby causing an oscillatory burst of current to occur in the external leads of the TED. The frequency of the burst is proportional to the distance between the gate and the illuminated region and the burst duration is proportional to the optical pulse amplitude and/or duration. Alternatively, the burst generators may be formed from a two terminal TED with the cathode electrode being treated as the gate. A single pulse generator may be formed by applying an optical pulse to the substrate between the cathode and the gate of a three terminal TED. The duration of the single pulse is proportional to the distance between the gate and the anode. (Author).

Descriptors :   *PATENTS, *PULSE GENERATORS, *GATES(CIRCUITS), *SEMICONDUCTORS, PULSE AMPLITUDE, SPACE CHARGE, LIGHT PULSES, TRANSFER, ELECTRODES, ELECTRONS, SUBSTRATES, DOMAIN WALLS, CATHODES, RANGE(DISTANCE), ANODES

Subject Categories : Electrical and Electronic Equipment
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE