Cavity resonator free electron lasers as a source of stable attosecond pulses
McNeil, B.W.J. and Thompson, N.R. (2011) Cavity resonator free electron lasers as a source of stable attosecond pulses. EPL: A Letters Journal Exploring the Frontiers of Physics, 96. ISSN 0295-5075
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High-gain Free Electron Laser amplifiers are a potential source of single X-ray attosecond pulses and Attosecond Pulse Trains. Single-pulse output from short electron bunches is prone to significant power and arrival-time fluctuations. A Mode Locked Optical Klystron configuration of the FEL amplifier predicts generation of a frequency comb that may be locked to give APT output. In this paper it is shown using numerical simulations that a low feedback (so-called Regenerative Amplifier) FEL cavity resonator configuration can significantly improve output stability for single-pulse operation. The MLOK configuration may also be used in a cavity resonator to generate a frequency comb with spacing much greater than those of the axial cavity modes. As with the MLOK amplifier case, these modes can lock to generate a stable pulse train, each of a few optical cycles.
| Author(s): | McNeil, B.W.J. and Thompson, N.R. | Item type: | Article |
|---|---|
| ID code: | 36139 |
| Keywords: | free electron lasers , attosecond pulses , cavity resonator, Optics. Light, Physics and Astronomy(all) |
| Subjects: | Science > Physics > Optics. Light |
| Department: | Faculty of Science > Physics |
| Depositing user: | Pure Administrator |
| Date deposited: | 28 Nov 2011 11:51 |
| Last modified: | 03 Jan 2019 13:12 |
| Related URLs: | |
| URI: | https://strathprints.strath.ac.uk/id/eprint/36139 |
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