Electron densities, temperatures, and the dielectric function of femtosecond-laser-produced plasmas

Theobald, W.; Häßner, R.; Kingham, R. J.; Sauerbrey, R.; Fehr, R.; Gericke, Dirk O.; Schlanges, M.; Kraeft, W. D.; Ishikawa, Kenichi L.

doi:10.1103/physreve.59.3544

Cited by 26 publications

(13 citation statements)

References 29 publications

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“…This "step density" model is often used in this kind of problems. 12 The fitting procedure minimizes the standard deviation of the calculated R͑͒ from the measured one by scanning the fitting parameters in a reasonable large parameter space and leads to the following results. Up to 120 ps the plasma parameter el is approxi-mately 1.2/ fs.…”

Section: By Taking Into Account Multiple Beam Interferences the Follomentioning

confidence: 99%

Plasma dynamics of water breakdown at a water surface induced by femtosecond laser pulses

Sarpe-Tudoran

Assion

Wollenhaupt

et al. 2006

Applied Physics Letters

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Femtosecond laser pulse induced ultrafast plasma dynamics studies of water breakdown in the range up to 250ps are reported. We combine transient imaging techniques together with spectrally resolved reflection spectroscopy to monitor the early breakdown dynamics at the water surface with a laser intensity being 1.5 above threshold. We observe a 20ps delay before the plasma expands with an initial velocity of 5900m∕s. The transient electron density after formation of the plasma is 1.2×1021∕cm3. A recombination on a picosecond time scale with a rate of (1.6×10−9±0.3×10−9)cm3∕s is found.

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Section: By Taking Into Account Multiple Beam Interferences the Follomentioning

confidence: 99%

Plasma dynamics of water breakdown at a water surface induced by femtosecond laser pulses

Sarpe-Tudoran

Assion

Wollenhaupt

et al. 2006

Applied Physics Letters

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“…We recall that the idea of using high-order harmonics for plasma diagnostics is not new and has been verified in Ref. [12].…”

Section: Discussionmentioning

confidence: 98%

Third-harmonic generation in the skin layer of a hot dense plasma

2004

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The third-harmonic generation of a pump wave, resulting from the electron-ion collision frequency dependence on the electric field in the skin layer of a hot dense plasma is investigated. The relation of the current third harmonic with the high-frequency field in the skin layer is established for arbitrary ratios of the electron-ion collision frequency to the field frequency. For arbitrary ratios of these two frequencies, the field structure inside the skin layer is determined, and the field of the wave irradiated by the plasma at tripled frequency, too, is calculated. It has permitted us to find the explicit dependencies of the third-harmonic generation efficiency on the plasma and pump field parameters.

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“…(6) and (10), variation of plasma electron normalized temperature T e /T i and normalized density n e /n e0 for a 0 = 1, 2, 3 are shown in Figure 3. By using E in Eqs.…”

Section: Xiamentioning

confidence: 95%

“…Xie et al (2007) have analyzed the electromagnetic fields and electron acceleration in the bubble regime of the laser-plasma interaction. Theobald et al (1999) have investigated electron densities, temperatures, and the dielectric function of femtosecond-laser-produced plasmas experimentally and theoretically. Taking into account the ponderomotive force, Shokri and Niknam (2006) have investigated the profile of the electric, magnetic field, and electron density in collisionless unmagnetized nonisothermal plasma.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear structure of electromagnetic field, electron temperature and electron density in interaction of relativistic laser and plasma with density ripple

Xia

2014

Laser Part. Beams

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In the paper, nonlinear structure of electromagnetic field, electron temperature, and electron density in interaction with relativistic laser and collisional underdense rippled plasma are investigated. The results are shown that due to the combination influence of relativistic effect, ohmic heating and plasma density ripple, electromagnetic field profile presents obvious asynchronism, which the peak of electric field run ahead of the peak of magnetic field. Furthermore, the electromagnetic field profiles show obvious non-sinusoidal, and the profile of electron temperature and density become highly peaked. Especially, compared with the previous work, due to the added influence of plasma density ripple, electromagnetic field, electron temperature and electron density present obvious oscillation along plasma length rather than stabilization amplitude, and their peak are out of sync.

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Electron densities, temperatures, and the dielectric function of femtosecond-laser-produced plasmas

Cited by 26 publications

References 29 publications

Plasma dynamics of water breakdown at a water surface induced by femtosecond laser pulses

Plasma dynamics of water breakdown at a water surface induced by femtosecond laser pulses

Third-harmonic generation in the skin layer of a hot dense plasma

Nonlinear structure of electromagnetic field, electron temperature and electron density in interaction of relativistic laser and plasma with density ripple

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