Plasma Channel Formation and Guiding during High Intensity Short Pulse Laser Plasma Experiments

Krushelnick, K.; Ting, A.; Moore, Christopher I.; Burris, H. R.; Esarey, E.; Sprangle, P.; Baine, M.

doi:10.1103/physrevlett.78.4047

Cited by 210 publications

(83 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…24,25 Under such conditions, the probe pulse was observed to be guided by the plasma-density depression created by the selfchanneled pump pulse. 25,26 To measure the spectra of Raman scattering in several directions simultaneously, glass fibers of 1 mm core diameter were set up 2 cm away from the laser focus, i.e., f /20 acceptance, with each fiber looking from a specific angle. The opposite ends of the fibers were lined up on the slit of a prism spectrometer.…”

Section: Observation Of Raman Scattering Instability Via Angle-rementioning

confidence: 99%

Excitation and damping of a self-modulated laser wakefield

et al. 2000

View full text Add to dashboard Cite

, "Excitation and damping of a self-modulated laser wakefield" (2000). Spatially, temporally, and angularly resolved collinear collective Thomson scattering was used to diagnose the excitation and damping of a relativistic-phase-velocity self-modulated laser wakefield. The excitation of the electron plasma wave was observed to be driven by Raman-type instabilities. The damping is believed to originate from both electron beam loading and modulational instability. The collective Thomson scattering of a probe pulse from the ion acoustic waves, resulting from modulational instability, allows us to measure the temporal evolution of the plasma temperature. The latter was found to be consistent with the damping of the electron plasma wave.

show abstract

Section: Observation Of Raman Scattering Instability Via Angle-rementioning

confidence: 99%

Excitation and damping of a self-modulated laser wakefield

et al. 2000

View full text Add to dashboard Cite

show abstract

“…Practically, there are several ways to produce a plasma channel able to guide high power laser pulses [11][12][13][14][15][16][17][18]. Transient plasma generated by a low intensity laser pulse, a splash channel [11,12], is the most appropriate candidate for a plasma optical element.…”

Section: Introductionmentioning

confidence: 99%

“…The conventional optics may be not able to support required guiding and steering of high-energy particles or high power laser pulses. Plasma is the most prominent object as a nondestructive optical element for such a purpose, both for charged particles [8][9][10] and for high power laser beams [11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…Plasma optics for high power, femtosecond laser pulses can be based on the optical property of preplasma produced by prepulses via optical field ionization or optical breakdown [12,[15][16][17][18]. It is well known that focusing, defocusing, and/or scattering of light in plasma depends on the electron density gradient ∇nðr; ωÞ ¼ −∇½N e =N cr ðωÞ=nðr; ωÞ, where nðr; ωÞ is the refraction index, N cr ¼ mω 2 =4πe 2 the critical density and ω the light frequency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transient magnetized plasma as an optical element for high power laser pulses

Nakanii¹,

Hosokai²,

Iwasa³

et al. 2015

Phys. Rev. ST Accel. Beams

View full text Add to dashboard Cite

Underdense plasma produced in gas jets by low intensity laser prepulses in the presence of a static magnetic field, B ∼ 0.3 T, is shown experimentally to become an optical element allowing steering of tightly focused high power femtosecond laser pulses within several degrees along with essential enhancement of pulse's focusability. Strong laser prepulses form a density ramp perpendicularly to magnetic field direction and, owing to the light refraction, main laser pulses propagate along the magnetic field even if it is tilted from the laser axis. Electrons generated in the laser pulse wake are well collimated and follow in the direction of the magnetic field; their characteristics are measured to be not sensitive to the tilt of magnetic field up to angles AE5°.

show abstract

“…A preformed plasma density channel can prevent diffraction, e.g., a channel with a radially parabolic density profile n(r) = no + Anr 2 /fg can guide a laser pulse of spot size TQ provided An = An c , where An c = l/7rr e fo is the critical channel depth and r e = e 2 /m e c 2 [6]. Plasma channels have been created experimentally by various methods and have been used to guide laser pulses over distances < WQZ R [1], [7], [8].…”

Section: Introductionmentioning

confidence: 99%

Nonparaxial propagation of intense laser pulses in plasmas

Esarey¹,

Shadwick²,

Schroeder³

et al. 2001

AIP Conference Proceedings

Self Cite

View full text Add to dashboard Cite

Abstract, Non-paraxial propagation of ultrashort, high power laser pulses in plasma channels is examined. In the adiabatic limit, pulse energy conservation, nonlinear group velocity, damped betatron oscillations, self-steepening, self-phase modulation, and shock formation are analyzed. In the non-adiabatic limit, the coupling of forward Hainan scattering (FRS) and the self-modulation instability (SMI) is analyzed and growth rates are derived, including regimes of reduced growth. The SMI is found to dominate FRS in most regimes of interest.

show abstract

Plasma Channel Formation and Guiding during High Intensity Short Pulse Laser Plasma Experiments

Cited by 210 publications

References 27 publications

Excitation and damping of a self-modulated laser wakefield

Excitation and damping of a self-modulated laser wakefield

Transient magnetized plasma as an optical element for high power laser pulses

Nonparaxial propagation of intense laser pulses in plasmas

Contact Info

Product

Resources

About