Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Group velocity matching in terahertz-driven dielectric-lined waveguides for electron acceleration
AU - Healy, A. L.
AU - Burt, G.
AU - Jamison, S. P.
PY - 2017/10/16
Y1 - 2017/10/16
N2 - Terahertz(THz)-driven dielectric-lined waveguides have applications in electron manipulation, particularly acceleration, as the use of dielectric allows for phase velocities below the speed of light. However matching a single frequency to the correct velocity does not maximise electron-THz interaction; waveguide dispersion typically results in an unmatched group velocity and so the pulse envelope of a short THz pulse changes along the length of the structure. This reduces field amplitude and therefore accelerating gradient as the envelope propagates at a different velocity to the electron. The effect on net acceleration is demonstrated via an example of a structure excited by a THz pulse of different temporal lengths.
AB - Terahertz(THz)-driven dielectric-lined waveguides have applications in electron manipulation, particularly acceleration, as the use of dielectric allows for phase velocities below the speed of light. However matching a single frequency to the correct velocity does not maximise electron-THz interaction; waveguide dispersion typically results in an unmatched group velocity and so the pulse envelope of a short THz pulse changes along the length of the structure. This reduces field amplitude and therefore accelerating gradient as the envelope propagates at a different velocity to the electron. The effect on net acceleration is demonstrated via an example of a structure excited by a THz pulse of different temporal lengths.
U2 - 10.1109/UCMMT.2017.8068491
DO - 10.1109/UCMMT.2017.8068491
M3 - Conference contribution/Paper
AN - SCOPUS:85037085524
T3 - 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
BT - 2017 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th UK-Europe-China Workshop on Millimetre Waves and Terahertz Technologies, UCMMT 2017
Y2 - 11 September 2017 through 13 September 2017
ER -