### Abstract

A theoretical analysis of high-gain Compton free electron laser dynamics when the radio frequency (rf) field evolves self-consistently with single resonant particles representing a pre-bunched electron beam is presented and the single particle phase space is studied. Using a set of universally scaled equations the optimal parameters of excitation for a free electron laser (FEL) in the single particle approximation are found. Using a new approach the relations between the initial rf field amplitude, the output field amplitude and the particle's initial detuning from resonance are also found. A set of equations describing the self-consistent evolution of the rf field with e-bunch macro-parameters, such as bunch width and bunch mean phase, is derived from the universally scaled equations under the condition of the uniform initial distribution of electrons in the bunch. The analysis of optical field generation and amplification by compact bunches of electrons is provided. The saturation regime and the physical reason for the saturation in the high-gain Compton FEL driven by pre-bunched electrons are studied and discussed.

Original language | English |
---|---|

Pages (from-to) | 4280-4290 |

Number of pages | 11 |

Journal | Physics of Plasmas |

Volume | 7 |

Issue number | 10 |

DOIs | |

Publication status | Published - Oct 2000 |

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### Keywords

- amplified spontaneous emission
- optical-klystron
- electron bunches
- free electron lasers
- microwave devices

### Cite this

*Physics of Plasmas*,

*7*(10), 4280-4290. https://doi.org/10.1063/1.1289686

}

*Physics of Plasmas*, vol. 7, no. 10, pp. 4280-4290. https://doi.org/10.1063/1.1289686

**High-gain Compton free electron laser driven by pre-bunched electrons.** / Konoplev, I V ; Phelps, A D R .

Research output: Contribution to journal › Article

TY - JOUR

T1 - High-gain Compton free electron laser driven by pre-bunched electrons

AU - Konoplev, I V

AU - Phelps, A D R

PY - 2000/10

Y1 - 2000/10

N2 - A theoretical analysis of high-gain Compton free electron laser dynamics when the radio frequency (rf) field evolves self-consistently with single resonant particles representing a pre-bunched electron beam is presented and the single particle phase space is studied. Using a set of universally scaled equations the optimal parameters of excitation for a free electron laser (FEL) in the single particle approximation are found. Using a new approach the relations between the initial rf field amplitude, the output field amplitude and the particle's initial detuning from resonance are also found. A set of equations describing the self-consistent evolution of the rf field with e-bunch macro-parameters, such as bunch width and bunch mean phase, is derived from the universally scaled equations under the condition of the uniform initial distribution of electrons in the bunch. The analysis of optical field generation and amplification by compact bunches of electrons is provided. The saturation regime and the physical reason for the saturation in the high-gain Compton FEL driven by pre-bunched electrons are studied and discussed.

AB - A theoretical analysis of high-gain Compton free electron laser dynamics when the radio frequency (rf) field evolves self-consistently with single resonant particles representing a pre-bunched electron beam is presented and the single particle phase space is studied. Using a set of universally scaled equations the optimal parameters of excitation for a free electron laser (FEL) in the single particle approximation are found. Using a new approach the relations between the initial rf field amplitude, the output field amplitude and the particle's initial detuning from resonance are also found. A set of equations describing the self-consistent evolution of the rf field with e-bunch macro-parameters, such as bunch width and bunch mean phase, is derived from the universally scaled equations under the condition of the uniform initial distribution of electrons in the bunch. The analysis of optical field generation and amplification by compact bunches of electrons is provided. The saturation regime and the physical reason for the saturation in the high-gain Compton FEL driven by pre-bunched electrons are studied and discussed.

KW - amplified spontaneous emission

KW - optical-klystron

KW - electron bunches

KW - free electron lasers

KW - microwave devices

U2 - 10.1063/1.1289686

DO - 10.1063/1.1289686

M3 - Article

VL - 7

SP - 4280

EP - 4290

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 10

ER -