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Gian Piero Gallerano *, Andrea Doria, and Emilio Giovenale
ENEA - Radiation Sources Laboratory – 00044 Frascati, Italy
* Email: gianpiero.gallerano@enea.it
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Abstract: In this paper we review the physics of long wavelength Free Electron Lasers (FELs) driven by low-energy electron accelerators. We show how the waveguide operation can lead to new attracting features, like a wide gain bandwidth, a short resonator length, and the possibility of generating sub-picosecond radiation pulses in compact table-top devices. The short electron pulse duration associated with radio-frequency (RF) accelerators also gives rise to the so-called "coherent spontaneous emission", which greatly enhances the performance of this type of sources.
Keywords: Terahertz sources, Free electron lasers, Coherent synchrotron radiation.
Received: 2014-12-15
Published: 2014-12-30
Cite this article:
Gian Piero Gallerano, Andrea Doria, and Emilio Giovenale. The physics of and prospects for THz-Compact FELs[J]. International Journal of Terahertz Science and Technology, 2014, Vol.7, No.4: 160-171. DOI:10.11906/TST.160-171.2014.12.15
URL: http://www.tstnetwork.org/10.11906/TST.160-171.2014.12.15
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