Frequency Up-Conversion of Electromagnetic Radiation with Use of an Overdense Plasma

Wilks, S. C.; Dawson, J. M.; Mori, W. B.

doi:10.1103/physrevlett.61.337

Cited by 238 publications

(125 citation statements)

References 2 publications

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“…Optical guiding can occur when the plasma density is minimum on axis. Analysis of the wave equation for a fixed parabolic plasma density channel indicates that optical guiding of a Gaussian laser pulse occurs when the channel density depth is given by 8 1 A 2r (9) where An = n(ro) -n(O) and re = e 2 /moc 2 is the classical electron radius (see Fig. 4).…”

Section: A2 Nomentioning

confidence: 99%

Interaction of ultrahigh laser fields with beams and plasmas

Sprangle

Esarey

1992

Physics of Fluids B: Plasma Physics

188

104

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Section: A2 Nomentioning

confidence: 99%

Interaction of ultrahigh laser fields with beams and plasmas

Sprangle

Esarey

1992

Physics of Fluids B: Plasma Physics

188

104

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“…Pair production decreases the wave amplitude while the growth of plasma density all over the space causes the increase of the wave frequency which is proportional to square root of the density. This effect resembles the case when the electromagnetic wave propagates in an ionizing medium [26].…”

Section: Conclusion and Discussionmentioning

confidence: 98%

“…This frequency up-shift is seen in Fig.1, and bears a strong resemblance to the blue-shift of an electromagnetic wave that propagates in a medium that becomes ionized, as investigated theoretically in Ref. [26] and experimentally in Ref. [27].…”

Section: Kinetic Description Of the Electron-positron Plasmamentioning

confidence: 91%

Damping of electromagnetic waves due to electron-positron pair production

Bulanov

Fedotov²,

Пегораро

2005

Phys. Rev. E

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The problem of the backreaction during the process of electron-positron pair production by a circularly polarized electromagnetic wave propagating in a plasma is investigated. A model based on the relativistic Boltzmann-Vlasov equation with a source term corresponding to the Schwinger formula for the pair creation rate is used. The damping of the wave, the nonlinear up-shift of its frequency due to the plasma density increase and the effect of the damping on the wave polarization and on the background plasma acceleration are investigated as a function of the wave amplitude.

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“…A novel technique for tuning the frequency is flash ionization, which was predicted by S. C. Wilks et al [4,5]. The source em wave with an angular frequency 0 is propagating in the z direction.…”

Section: Introductionmentioning

confidence: 99%

Frequency upshift via flash ionization phenomena using semiconductor plasma

Nishida

Nakata

Oba

et al. 2013

EPJ Web of Conferences

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Abstract.We have demonstrated frequency upshift in the terahertz region by flash ionization. The magnitude of upshift frequency is tuned by the laser intensity. A proof of principle experiment has been performed with a plasma creation time scale much shorter than the period of the electromagnetic wave and a plasma length longer than its wavelength. Frequency upshifted from 0.35 to 3.5 THz by irradiating a ZnSe crystal with a ultra-short laser pulse has been observed.

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Frequency Up-Conversion of Electromagnetic Radiation with Use of an Overdense Plasma

Cited by 238 publications

References 2 publications

Interaction of ultrahigh laser fields with beams and plasmas

Interaction of ultrahigh laser fields with beams and plasmas

Damping of electromagnetic waves due to electron-positron pair production

Frequency upshift via flash ionization phenomena using semiconductor plasma

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