Time-of-flight profile of multiply-charged ion currents produced by a pulse laser

Krása, J.; Lorusso, A.; Doria, D.; Belloni, F.; Nassisi, V.; Rohlena, K.

doi:10.1088/0741-3335/47/8/012

Cited by 33 publications

(20 citation statements)

References 27 publications

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“…The constants presented in Table III It is also possible to reconstruct the charge yield at any particular distance (d) along the flight tube, for d >>L CR , using analytically determined equations [65][66][67] which takes the form Q∝d -2 . These relations can be used to compensate for dilution and expansion of the plume.…”

Section: Resultsmentioning

confidence: 99%

Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes

Yeates¹,

Fallon²,

Kennedy³

et al. 2011

Physics of Plasmas

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Section: Resultsmentioning

confidence: 99%

Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes

Yeates¹,

Fallon²,

Kennedy³

et al. 2011

Physics of Plasmas

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“…Recently published papers [10,13,18] demonstrated successful fitting of measured TOF spectra of multiply charged ions by a function derived from Kelly and Dreyfus model [9] based on the effect of Knudsen-layer formation. This Kelly and Dreyfus model predicts the density of ions with the charge state q in the form…”

Section: Deconvolution Of Tof Spectramentioning

confidence: 99%

“…This Kelly and Dreyfus function can be used for deconvolution of TOF spectra recorded with an ion collector for determination of basic parameters of single ion charge state streams emitted by a laser-produced plasma [18]. The goal of our contribution is a deconvolution of carbon TOF spectra recorded with an ion collector.…”

Section: Introductionmentioning

confidence: 99%

Retrieval of currents of multiply charged ions emitted from laser-produced carbon plasma

Krása

Torrisi

Picciotto

et al. 2005

Radiation Effects and Defects in Solids

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The emission of ions from laser-produced carbon plasmas is investigated by a deconvolution of ion collector signals. The deconvolution is based on the use of Kelly and Dreyfus function expressing the time-resolved ion current to recover hidden peaks in an ion collector signal. The parameters of recovered C q+ (1 ≤ q ≤ 6) currents make possible the quantification of properties of laser-produced plasmas. The drift and peak velocities of C q+ ions, the abundance of ions and the plasma temperature are presented in the dependence on focused laser beam energy. The carbon plasma was generated employing either single 9-ns pulses of second harmonics (532 nm) of Nd:YAG laser or pulses repeated at a stable repetition rate of 30 Hz.

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“…which is similar with a shifted Maxwellian distribution [99,100], often used for treating the temporal trace of the LP current:…”

Section: Theoretical Investigationsmentioning

confidence: 99%

Experimental and Theoretical Studies on the Dynamics of Transient Plasmas Generated by Laser Ablation in Various Temporal Regimes

Nica¹,

Irimiciuc²,

Agop³

et al. 2017

Laser Ablation - From Fundamentals to Applications

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During the last decade, our groups have performed systematic experimental studies on the characterization of plasma plumes generated by laser ablation in various temporal regimes (ns, ps, fs) on materials ranging from simple metals (Al, Cu, Mn, Ni, In, W, …) to more complex compounds (ceramics, chalcogenide glasses, ferrites). Optical (fast imaging and space-and time-resolved emission spectroscopy) and electrical (mainly Langmuir probe) methods have been applied to experimentally investigate the dynamics of the plasma plume and its constituents. Influence of the target physical (thermodynamic and electrical) parameters on the plasma dynamics has been studied. A mathematical correlation between the local and global plasma parameters and the physical properties of the target was proposed for the first time. Peculiar behaviors like plume splitting or plasma oscillations have been evidenced for high laser fluence ablation in vacuum. Along with results from the literature, our findings provide convincing arguments for the existence of multiple double-layers in the laser ablation plasma plume, in a scenario including two-temperature electrons. New fractal-based theoretical approaches have been developed to qualitatively and quantitatively account for the observed phenomena. The space and time evolution of expansion velocity, particle number, current density and plasma temperature were theoretically investigated.

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Time-of-flight profile of multiply-charged ion currents produced by a pulse laser

Cited by 33 publications

References 27 publications

Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes

Charge resolved electrostatic diagnostic of colliding copper laser plasma plumes

Retrieval of currents of multiply charged ions emitted from laser-produced carbon plasma

Experimental and Theoretical Studies on the Dynamics of Transient Plasmas Generated by Laser Ablation in Various Temporal Regimes

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