Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses

Gaurav Raj, M. R. Islam, B. Ersfeld, D. A. Jaroszynski, DA Jaroszynski (Editor), A Rousse (Editor)

Research output: Contribution to conferencePaper

Abstract

An analytical study of significant photon acceleration (frequency up-shift) in a plasma density wake produced by two laser pulses in the mildly relativistic and linearized regime is presented. The wake amplitude is amplified and its phase controlled using two coaxially, co-propagating laser pulses, which are considered to be identical but separated by a fixed time. A third probe pulse, with a variable delay, is considered as ``test particle'' or quasi-photon propagating through the amplified density wake, which experiences significant photon acceleration because of the local temporal and spatial variation of the permittivity. The evolution of the ``photon'' is studied using Hamiltonian theory. The significant frequency up-shift is much larger than that produced by the wake of a single relativistic laser pulse in the highly relativistic nonlinear wake regime. Our study demonstrates that the inter-pulse separation between the ``controlling'' pulse and the ``driver'' pulse, producing the amplified density wake, can provide an additional degree of freedom for tuning the maximum up-shift of the probe photon frequency.

Conference

ConferenceConference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond
CountryCzech Republic
CityPrague
Period21/04/0923/04/09

Fingerprint

wakes
plasma density
photons
pulses
lasers
shift
probes
degrees of freedom
tuning
permittivity

Keywords

  • dual pulse scheme
  • phase space analysis
  • photon acceleration
  • amplified wakefield

Cite this

Raj, G., Islam, M. R., Ersfeld, B., Jaroszynski, D. A., Jaroszynski, DA. (Ed.), & Rousse, A. (Ed.) (2009). Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses. Paper presented at Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Prague, Czech Republic. https://doi.org/10.1117/12.820959
Raj, Gaurav ; Islam, M. R. ; Ersfeld, B. ; Jaroszynski, D. A. ; Jaroszynski, DA (Editor) ; Rousse, A (Editor). / Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses. Paper presented at Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Prague, Czech Republic.
@conference{003cd64a547043f0a8c855807aab6427,
title = "Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses",
abstract = "An analytical study of significant photon acceleration (frequency up-shift) in a plasma density wake produced by two laser pulses in the mildly relativistic and linearized regime is presented. The wake amplitude is amplified and its phase controlled using two coaxially, co-propagating laser pulses, which are considered to be identical but separated by a fixed time. A third probe pulse, with a variable delay, is considered as ``test particle'' or quasi-photon propagating through the amplified density wake, which experiences significant photon acceleration because of the local temporal and spatial variation of the permittivity. The evolution of the ``photon'' is studied using Hamiltonian theory. The significant frequency up-shift is much larger than that produced by the wake of a single relativistic laser pulse in the highly relativistic nonlinear wake regime. Our study demonstrates that the inter-pulse separation between the ``controlling'' pulse and the ``driver'' pulse, producing the amplified density wake, can provide an additional degree of freedom for tuning the maximum up-shift of the probe photon frequency.",
keywords = "dual pulse scheme, phase space analysis , photon acceleration, amplified wakefield",
author = "Gaurav Raj and Islam, {M. R.} and B. Ersfeld and Jaroszynski, {D. A.} and DA Jaroszynski and A Rousse",
year = "2009",
doi = "10.1117/12.820959",
language = "English",
note = "Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond ; Conference date: 21-04-2009 Through 23-04-2009",

}

Raj, G, Islam, MR, Ersfeld, B, Jaroszynski, DA, Jaroszynski, DA (ed.) & Rousse, A (ed.) 2009, 'Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses' Paper presented at Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Prague, Czech Republic, 21/04/09 - 23/04/09, . https://doi.org/10.1117/12.820959

Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses. / Raj, Gaurav; Islam, M. R.; Ersfeld, B.; Jaroszynski, D. A.; Jaroszynski, DA (Editor); Rousse, A (Editor).

2009. Paper presented at Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Prague, Czech Republic.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses

AU - Raj, Gaurav

AU - Islam, M. R.

AU - Ersfeld, B.

AU - Jaroszynski, D. A.

A2 - Jaroszynski, DA

A2 - Rousse, A

PY - 2009

Y1 - 2009

N2 - An analytical study of significant photon acceleration (frequency up-shift) in a plasma density wake produced by two laser pulses in the mildly relativistic and linearized regime is presented. The wake amplitude is amplified and its phase controlled using two coaxially, co-propagating laser pulses, which are considered to be identical but separated by a fixed time. A third probe pulse, with a variable delay, is considered as ``test particle'' or quasi-photon propagating through the amplified density wake, which experiences significant photon acceleration because of the local temporal and spatial variation of the permittivity. The evolution of the ``photon'' is studied using Hamiltonian theory. The significant frequency up-shift is much larger than that produced by the wake of a single relativistic laser pulse in the highly relativistic nonlinear wake regime. Our study demonstrates that the inter-pulse separation between the ``controlling'' pulse and the ``driver'' pulse, producing the amplified density wake, can provide an additional degree of freedom for tuning the maximum up-shift of the probe photon frequency.

AB - An analytical study of significant photon acceleration (frequency up-shift) in a plasma density wake produced by two laser pulses in the mildly relativistic and linearized regime is presented. The wake amplitude is amplified and its phase controlled using two coaxially, co-propagating laser pulses, which are considered to be identical but separated by a fixed time. A third probe pulse, with a variable delay, is considered as ``test particle'' or quasi-photon propagating through the amplified density wake, which experiences significant photon acceleration because of the local temporal and spatial variation of the permittivity. The evolution of the ``photon'' is studied using Hamiltonian theory. The significant frequency up-shift is much larger than that produced by the wake of a single relativistic laser pulse in the highly relativistic nonlinear wake regime. Our study demonstrates that the inter-pulse separation between the ``controlling'' pulse and the ``driver'' pulse, producing the amplified density wake, can provide an additional degree of freedom for tuning the maximum up-shift of the probe photon frequency.

KW - dual pulse scheme

KW - phase space analysis

KW - photon acceleration

KW - amplified wakefield

U2 - 10.1117/12.820959

DO - 10.1117/12.820959

M3 - Paper

ER -

Raj G, Islam MR, Ersfeld B, Jaroszynski DA, Jaroszynski DA, (ed.), Rousse A, (ed.). Photon frequency up-shifting by an amplified plasma density wake due to two co-propagating laser pulses. 2009. Paper presented at Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Prague, Czech Republic. https://doi.org/10.1117/12.820959