Sep 15 – 21, 2019
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Experimental demonstration of a continuously tunable terahertz source based on a dielectric wakefield structure

Sep 18, 2019, 4:40 PM
SB1 (Hotel Hermitage)


Hotel Hermitage

talk WG3 - Electron beams from electromagnetic structures, including dielectric and laser-driven structures WG3 - Dielectric Beam-driven Acceleration Thz acceleration


Thomas Pacey (STFC, ASTeC)


A continuously tunable THz source driven by wakefields in a dielectric lined waveguide (DLW) has been experimentally demonstrated at the CLARA/VELA test facility at Daresbury Laboratory, UK. The source was tuned across the range 0.55 – 0.95 THz with a bandwidth of <50 GHz. The DLW was a planar structure with 25 um quartz dielectric layers and an aperture variable from 0.15 mm to 1.1 mm. Summary of experimental results on tunability range, modes spectra, pulse THz energy and comparison with theoretical predictions are presented.

Primary authors

Thomas Pacey (STFC, ASTeC) Yuri Saveliev (STFC, Daresbury Lab., ASTeC) Guoxing Xia (Cockcroft Institute and the University of Manchester) Pavel Karataev (Royal Holloway, Unviersity of London) Kirill Fedorov (Royal Holloway University of London) Dr Peter Huggard (STFC, TD) Mr Byron Alderman (STFC, TD)

Presentation materials