Design of sub-Angstrom compact free-electron laser source

Rodolfo Bonifacio, Hesham Fares, Massimo Ferrario, Brian W. J. McNeil, Gordon R. M. Robb

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

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.
LanguageEnglish
Pages58-63
Number of pages6
JournalOptics Communications
Volume382
Early online date30 Jul 2016
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Free electron lasers
free electron lasers
Spontaneous emission
spontaneous emission
Electron beams
Momentum
electron beams
momentum
Radiation
radiation
Backscattering
Power spectrum
emittance
Linewidth
power spectra
backscattering
Photons
Fluxes
Electrons
Computer simulation

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

Bonifacio, Rodolfo ; Fares, Hesham ; Ferrario, Massimo ; McNeil, Brian W. J. ; Robb, Gordon R. M. / Design of sub-Angstrom compact free-electron laser source. In: Optics Communications. 2017 ; Vol. 382. pp. 58-63.
@article{5fcd119ac2d342c6851d9e41a379fcd9,
title = "Design of sub-Angstrom compact free-electron laser source",
abstract = "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.",
keywords = "free electron laser, quantum free electron laser, compton backscattering, x-ray, sub-Angstrom, Compton backscattering, picocoulomb electron bunch, ultracold , self amplified spontaneous emmission",
author = "Rodolfo Bonifacio and Hesham Fares and Massimo Ferrario and McNeil, {Brian W. J.} and Robb, {Gordon R. M.}",
year = "2017",
month = "1",
day = "1",
doi = "10.1016/j.optcom.2016.07.007",
language = "English",
volume = "382",
pages = "58--63",
journal = "Optics Communications",
issn = "0030-4018",

}

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 journalArticle

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 -