Abstract
| Language | English |
|---|---|
| Pages | 58-63 |
| Number of pages | 6 |
| Journal | Optics Communications |
| Volume | 382 |
| Early online date | 30 Jul 2016 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
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Keywords
- free electron laser
- quantum free electron laser
- compton backscattering
- x-ray
- sub-Angstrom
- Compton backscattering
- picocoulomb electron bunch
- ultracold
- self amplified spontaneous emmission
Cite this
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Design of sub-Angstrom compact free-electron laser source. / Bonifacio, Rodolfo; Fares, Hesham; Ferrario, Massimo; McNeil, Brian W. J.; Robb, Gordon R. M.
In: Optics Communications, Vol. 382, 01.01.2017, p. 58-63.Research output: Contribution to journal › Article
TY - JOUR
T1 - Design of sub-Angstrom compact free-electron laser source
AU - Bonifacio, Rodolfo
AU - Fares, Hesham
AU - Ferrario, Massimo
AU - McNeil, Brian W. J.
AU - Robb, Gordon R. M.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - In this paper, we propose for first time practical parameters to construct a compact sub-Angstrom Free Electron Laser (FEL) based on Compton backscattering. Our recipe is based on using picocoulomb electron bunch, enabling very low emittance and ultracold electron beam. We assume the FEL is operating in a quantum regime of Self Amplified Spontaneous Emission (SASE). The fundamental quantum feature is a significantly narrower spectrum of the emitted radiation relative to classical SASE. The quantum regime of the SASE FEL is reached when the momentum spread of the electron beam is smaller than the photon recoil momentum. Following the formulae describing SASE FEL operation, realistic designs for quantum FEL experiments are proposed. We discuss the practical constraints that influence the experimental parameters. Numerical simulations of power spectra and intensities are presented and attractive radiation characteristics such as high flux, narrow linewidth, and short pulse structure are demonstrated.
AB - In this paper, we propose for first time practical parameters to construct a compact sub-Angstrom Free Electron Laser (FEL) based on Compton backscattering. Our recipe is based on using picocoulomb electron bunch, enabling very low emittance and ultracold electron beam. We assume the FEL is operating in a quantum regime of Self Amplified Spontaneous Emission (SASE). The fundamental quantum feature is a significantly narrower spectrum of the emitted radiation relative to classical SASE. The quantum regime of the SASE FEL is reached when the momentum spread of the electron beam is smaller than the photon recoil momentum. Following the formulae describing SASE FEL operation, realistic designs for quantum FEL experiments are proposed. We discuss the practical constraints that influence the experimental parameters. Numerical simulations of power spectra and intensities are presented and attractive radiation characteristics such as high flux, narrow linewidth, and short pulse structure are demonstrated.
KW - free electron laser
KW - quantum free electron laser
KW - compton backscattering
KW - x-ray
KW - sub-Angstrom
KW - Compton backscattering
KW - picocoulomb electron bunch
KW - ultracold
KW - self amplified spontaneous emmission
UR - http://www.sciencedirect.com/science/journal/00304018
U2 - 10.1016/j.optcom.2016.07.007
DO - 10.1016/j.optcom.2016.07.007
M3 - Article
VL - 382
SP - 58
EP - 63
JO - Optics Communications
T2 - Optics Communications
JF - Optics Communications
SN - 0030-4018
ER -