Electron multiplier electrode and terahertz radiation source using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsChan-wook Baik, Yong-wan Jin, Sun-il Kim, Min-jong Bae
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Abstract
Provided are an electron multiplier electrode using a secondary electron extraction electrode and a terahertz radiation source using the electron multiplier electrode. The electron multiplier electrode includes: a cathode; an emitter disposed on the cathode and extracting electron beams; a gate electrode for switching the electron beams, the gate electrode being disposed on the cathode to surround the emitter; and a secondary electron extraction electrode disposed on the gate electrode and including a secondary electron extraction layer extracting secondary electrons due to collision of the electron beams.
Claims19
An electron multiplier electrode comprising:
- a cathode;
- an emitter disposed on the cathode and emitting electron beams;
- a gate electrode for switching the electron beams, which is disposed on the cathode to surround the emitter;
- and
- a secondary electron extraction electrode disposed on the gate electrode and comprising a secondary electron extraction layer extracting secondary electrons due to collision of the electron beams.
A terahertz radiation source comprising:
- a cathode;
- an emitter disposed on the cathode and emitting electron beams;
- a gate electrode for switching the electron beams, which is disposed on the cathode to surround the emitter;
- a secondary electron extraction electrode disposed on the gate electrode and comprising a secondary electron extraction layer extracting secondary electrons due to collision of the electron beams;
- an anode facing the secondary electron extraction electrode and receiving the electron beams;
- and
- a terahertz circuit disposed between the anode and the secondary electron extraction electrode and generating terahertz electromagnetic waves using the electron beams.
Dependencies are inferred from the claim text.