Conference Proceeding

The European project OPTHER for the development of a THz tube amplifier

Dept. of Electron. Eng., Univ. of Rome Tor Vergata, Rome, Italy
05/2009; DOI:10.1109/IVELEC.2009.5193372 pp.100 - 101 In proceeding of: Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Source: IEEE Xplore

ABSTRACT The European project OPTHER - Optically Driven THz Amplifiers, is focused on the realization of a THz amplifier. This device aims to overcome the actual limitations of THz sources in terms of emitted power, opening the way to the use of THz in monitoring security systems. Two alternative schemes are under study for amplification. In the first one (THz drive signal amplifier) the continuous wave electron beam emitted by the CNT cathode is modulated by the electric field in the interaction structure driven by a THz signal (generated by QCL or laser mixing). In the second one (optically modulated beam THz amplifier), the CNT cathode emits bunches of electrons at the THz rate. Those bunches are transmitted to the interaction structure and generate the amplified output signal.

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Keywords

actual limitations
 
amplified output signal
 
CNT cathode emits bunches
 
continuous wave electron beam
 
electric field
 
European project OPTHER
 
laser mixing
 
modulated beam THz amplifier
 
monitoring security systems
 
Optically Driven THz Amplifiers
 
THz
 
THz amplifier
 
THz drive signal amplifier
 
THz rate
 
THz signal
 
THz sources