Cooling of relativistic electron beams in chirped laser pulses

Research output: Contribution to conferenceProceeding

3 Citations (Scopus)

Abstract

The next few years will see next-generation high-power laser facilities (such as the Extreme Light Infrastructure) become operational, for which it is important to understand how interaction with intense laser pulses affects the bulk properties of a relativistic electron beam. At such high field intensities, we expect both radiation reaction and quantum effects to play a significant role in the beam dynamics. The resulting reduction in relative energy spread (beam cooling) at the expense of mean beam energy predicted by classical theories of radiation reaction depends only on the energy of the laser pulse. Quantum effects suppress this cooling, with the dynamics additionally sensitive to the distribution of energy within the pulse. Since chirps occur in both the production of high-intensity pulses (CPA) and the propagation of pulses in media, the effect of using chirps to modify the pulse shape has been investigated using a semi-classical extension to the Landau–Lifshitz theory. Results indicate that even large chirps introduce a significantly smaller change to final state predictions than going from a classical to quantum model for radiation reaction, the nature of which can be intuitively understood.

Conference

ConferenceSPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources
Abbreviated titleSPIE2015
CountryCzech Republic
CityPrague
Period13/04/1516/04/15

Fingerprint

relativistic electron beams
cooling
chirp
pulses
lasers
radiation
energy
high power lasers
propagation
predictions
interactions

Keywords

  • radiation reaction
  • quantum effects
  • semi-classical model
  • beam cooling
  • chirped lasers

Cite this

Yoffe, S. R., Noble, A., Kravets, Y., & Jaroszynski, D. A. (2015). Cooling of relativistic electron beams in chirped laser pulses. SPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources, Prague, Czech Republic. https://doi.org/10.1117/12.2182573
Yoffe, Samuel R. ; Noble, Adam ; Kravets, Yevgen ; Jaroszynski, Dino A. / Cooling of relativistic electron beams in chirped laser pulses. SPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources, Prague, Czech Republic.8 p.
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abstract = "The next few years will see next-generation high-power laser facilities (such as the Extreme Light Infrastructure) become operational, for which it is important to understand how interaction with intense laser pulses affects the bulk properties of a relativistic electron beam. At such high field intensities, we expect both radiation reaction and quantum effects to play a significant role in the beam dynamics. The resulting reduction in relative energy spread (beam cooling) at the expense of mean beam energy predicted by classical theories of radiation reaction depends only on the energy of the laser pulse. Quantum effects suppress this cooling, with the dynamics additionally sensitive to the distribution of energy within the pulse. Since chirps occur in both the production of high-intensity pulses (CPA) and the propagation of pulses in media, the effect of using chirps to modify the pulse shape has been investigated using a semi-classical extension to the Landau–Lifshitz theory. Results indicate that even large chirps introduce a significantly smaller change to final state predictions than going from a classical to quantum model for radiation reaction, the nature of which can be intuitively understood.",
keywords = "radiation reaction, quantum effects, semi-classical model, beam cooling, chirped lasers",
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Yoffe, SR, Noble, A, Kravets, Y & Jaroszynski, DA 2015, 'Cooling of relativistic electron beams in chirped laser pulses' SPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources, Prague, Czech Republic, 13/04/15 - 16/04/15, . https://doi.org/10.1117/12.2182573

Cooling of relativistic electron beams in chirped laser pulses. / Yoffe, Samuel R.; Noble, Adam; Kravets, Yevgen; Jaroszynski, Dino A.

2015. SPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources, Prague, Czech Republic.

Research output: Contribution to conferenceProceeding

TY - CONF

T1 - Cooling of relativistic electron beams in chirped laser pulses

AU - Yoffe, Samuel R.

AU - Noble, Adam

AU - Kravets, Yevgen

AU - Jaroszynski, Dino A.

N1 - Datasets cited in Acknowledgements section.

PY - 2015/5/12

Y1 - 2015/5/12

N2 - The next few years will see next-generation high-power laser facilities (such as the Extreme Light Infrastructure) become operational, for which it is important to understand how interaction with intense laser pulses affects the bulk properties of a relativistic electron beam. At such high field intensities, we expect both radiation reaction and quantum effects to play a significant role in the beam dynamics. The resulting reduction in relative energy spread (beam cooling) at the expense of mean beam energy predicted by classical theories of radiation reaction depends only on the energy of the laser pulse. Quantum effects suppress this cooling, with the dynamics additionally sensitive to the distribution of energy within the pulse. Since chirps occur in both the production of high-intensity pulses (CPA) and the propagation of pulses in media, the effect of using chirps to modify the pulse shape has been investigated using a semi-classical extension to the Landau–Lifshitz theory. Results indicate that even large chirps introduce a significantly smaller change to final state predictions than going from a classical to quantum model for radiation reaction, the nature of which can be intuitively understood.

AB - The next few years will see next-generation high-power laser facilities (such as the Extreme Light Infrastructure) become operational, for which it is important to understand how interaction with intense laser pulses affects the bulk properties of a relativistic electron beam. At such high field intensities, we expect both radiation reaction and quantum effects to play a significant role in the beam dynamics. The resulting reduction in relative energy spread (beam cooling) at the expense of mean beam energy predicted by classical theories of radiation reaction depends only on the energy of the laser pulse. Quantum effects suppress this cooling, with the dynamics additionally sensitive to the distribution of energy within the pulse. Since chirps occur in both the production of high-intensity pulses (CPA) and the propagation of pulses in media, the effect of using chirps to modify the pulse shape has been investigated using a semi-classical extension to the Landau–Lifshitz theory. Results indicate that even large chirps introduce a significantly smaller change to final state predictions than going from a classical to quantum model for radiation reaction, the nature of which can be intuitively understood.

KW - radiation reaction

KW - quantum effects

KW - semi-classical model

KW - beam cooling

KW - chirped lasers

UR - http://spie.org/EOO/conferencedetails/relativistic-plasma-waves-and-particle-beams-as-coherent-and-incoherent-radiation-sources

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2293734

U2 - 10.1117/12.2182573

DO - 10.1117/12.2182573

M3 - Proceeding

ER -

Yoffe SR, Noble A, Kravets Y, Jaroszynski DA. Cooling of relativistic electron beams in chirped laser pulses. 2015. SPIE Optics + Optoelectronics: Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources, Prague, Czech Republic. https://doi.org/10.1117/12.2182573