Details

Autor(en) / Beteiligte

• Piot, P.
• Sun, Y.-E
• Maxwell, T. J.
• Ruan, J.
• Lumpkin, A. H.
• Rihaoui, M. M.
• Thurman-Keup, R.

Titel

Observation of coherently enhanced tunable narrow-band terahertz transition radiation from a relativistic sub-picosecond electron bunch train

Ist Teil von

• Applied physics letters, 2011-06, Vol.98 (26), p.261501-261501-3

Ort / Verlag

United States: American Institute of Physics

Erscheinungsjahr

2011

Quelle

AIP Journals Complete

Beschreibungen/Notizen

• We experimentally demonstrate the production of narrow-band ( δ f / f ≈ 20 % at f ≈ 0 . 5 THz ) transition radiation with tunable frequency over [0.37, 0.86] THz. The radiation is produced as a train of sub-picosecond relativistic electron bunches transits at the vacuum-aluminum interface of an aluminum converter screen. The bunch train is generated via a transverse-to-longitudinal phase space exchange technique. We also show a possible application of modulated beams to extend the dynamical range of a popular bunch length diagnostic technique based on the spectral analysis of coherent radiation.