Laboratory-scale wide-band FIR user facility based on a compact FEL

Jeong, Young Uk; Kazakevitch, Grigori M.; Lee, Byung Cheol; Park, Seong Hee; Jin, Hyuk

doi:10.1016/b978-0-444-51727-2.50026-2

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…facilities for applied research. The characteristics of user facilities using FEL oscillators depends in part on the accelerator technology used, which include electrostatic acceleration [5][6][7][8], energy recovery linear accelerators (linacs) [9][10][11][12][13][14], non-recovery linacs [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], microtrons [30,31] and synchrotrons [32][33][34][35][36]. Research performed at these user facilities includes amongst others biological and material science [37].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Slot¹,

Freund²

2021

Preprint

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Free-electron lasers (FELs) have been designed to operate over virtually the entire electromagnetic spectrum from microwaves through x-rays and in a variety of configurations including amplifiers and oscillators. Oscillators can operate in both the low and high gain regime and are typically used to improve the spatial and temporal coherence of the light generated. We will discuss various FEL oscillators ranging from systems with high-quality resonators combined with low-gain undulators to systems with a low-quality resonator combined with a high-gain undulator line. The FEL gain code MINERVA and wavefront propagation code OPC are used to model the FEL interaction within the undulator and the propagation in the remainder of the oscillator, respectively. We will not only include experimental data for the various systems for comparison when available, but also present for selected cases how the two codes can be used to study the effect of mirror aberrations and thermal mirror deformation on FEL performance.

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Section: Introductionmentioning

confidence: 99%

Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Slot¹,

Freund²

2021

Preprint

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“…As the wavelength of the synchronized EM wave decreases, due to the evanescent nature of the leaked surface wave, the electron beam trajectory must be parallel to the waveguide surface in the region of close proximity to enable an efficient operation. By the help of high-brightness field emission electrons sources, the Cerenkov laser in an infrared [9][10][11][12] or even in an optical wavelength range [13][14][15] (micro-Cerenkov FEL) is quite possible.…”

Section: Introductionmentioning

confidence: 99%

Quantum characteristics of stimulated Cherenkov radiation in dielectric-lined waveguide operating at optical wavelengths

Fares

Yamada

2011

Nuclear Instruments and Methods in Physics Research Section A:

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In this paper, a quantum mechanical model is proposed to describe the basic features of stimulated Cerenkov radiation in the small-signal gain regime. In this model, the electron is described by a wave packet with finite spreading length and the electron wave function is a solution of the Schrödinger equation. We show that the quantum effects are manifested when the spreading length of the electron wave is much longer than the electromagnetic (EM) wavelength such as in the optical wavelength range. The effect of electron relaxation due to Coulomb's collisions with neighboring electrons is introduced to characterize the damping of the vibration of the electron wave with time. When the relaxation effect is neglected, we prove that our essential results matches with other classical and quantum approaches based on different theoretical concepts.

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Laboratory-scale wide-band FIR user facility based on a compact FEL

Cited by 2 publications

References 11 publications

Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Three-dimensional, time-dependent analysis of high- and low-Q free-electron laser oscillators

Quantum characteristics of stimulated Cherenkov radiation in dielectric-lined waveguide operating at optical wavelengths

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