Properties of plasmas produced by short double pulse laser ablation of metals

Hermann, J.; Mercadier, Laurent; Axente, E.; Noël, Sylvie

doi:10.1088/1742-6596/399/1/012006

Cited by 7 publications

(12 citation statements)

References 51 publications

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“…With 50 fs pulses, the total plasma intensity with double pulses of 20 µJ (220 µJ) was 100 times higher than the one with a single pulse of the same pulse energy (120 µJ), and 50 times higher than the one with a single pulse but with a doubled pulse energy (140 µJ). Our observations on ultrashort double pulse ablation have been confirmed in similar studies in [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionsupporting

confidence: 86%

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Analytical performances of laser-induced micro-plasma of Al samples with single and double ultrashort pulses in air and with Ar-jet: A comparative study

Semerok¹,

Dutouquet²

2014

Spectrochimica Acta Part B: Atomic Spectroscopy

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To cite this version:A. Semerok, Christophe Dutouquet. Analytical performances of laser-induced micro-plasma of Al samples with single and double ultrashort pulses in air and with Ar-jet : A comparative study. Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier, 2014Elsevier, , 99, pp.163-171. 10.1016Elsevier, /j.sab.2014 A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Abstract.Ultrashort pulse laser microablation coupled with optical emission spectroscopy was under study to obtain several micro-LIBS analytical features (shot-to-shot reproducibility, spectral line intensity and lifetime, calibration curves, detection limits). Laser microablation of Al matrix samples with known Cu-and Mg-concentrations was performed by single and double pulses of 50 fs and 1 ps pulse duration in air and with Ar-jet.The micro-LIBS analytical features obtained under different experimental conditions were characterized and compared. The highest shot-to-shot reproducibility and gain in plasma spectral line intensity were obtained with double pulses with Ar-jet for both 50 fs and 1 ps pulse durations. The best calibration curves were obtained with 1ps pulse duration with Ar-jet. Micro-LIBS with ultrashort double pulses may find its effective application for surface elemental microcartography.

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Section: Introductionsupporting

confidence: 86%

“…The analysis of our results and those obtained in [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] has revealed the fundamental role of the electron-lattice relaxation time ( el .  1-10 ps) for laser ablation regime and the resulting double pulse LIBS-features.…”

Section: Discussionmentioning

confidence: 57%

Analytical performances of laser-induced micro-plasma of Al samples with single and double ultrashort pulses in air and with Ar-jet: A comparative study

Semerok¹,

Dutouquet²

2014

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Second, for larger interpulse delays, the atomized plume component is heated up by inverse bremsstrahlung, leading thus to an enhanced atomic emission intensity, as also reported by several authors [57,82]. Indeed, complementary analyses by optical emission spectroscopy [78] evidenced the increase of plume temperature and ionization degree. The observation of plume temperature increase was also confirmed by modeling [37].…”

Section: Influence Of Interpulse Delay On Plume Compositionsupporting

confidence: 69%

“…Figure 7. Emission intensities of atoms (red squares) and NPs (blue squares) deduced from plume images (see Figure 6) vs interpulse delay for two laser pulses of 2Jcm -2 [78]. The approximation by a biexponential function revealed two characteristic times for the observed plume compositional changes.…”

Section: Influence Of Interpulse Delay On Plume Compositionmentioning

confidence: 95%

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Nanoparticle Generation by Double-Pulse Laser Ablation

Axente¹,

Itina²,

Hermann³

2018

Pulsed Laser Ablation

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The purpose of this chapter is to give a critical review of the processes involved in the generation of nanoparticles by material ablation with two time-delayed laser pulses. Experimental investigations of the ablation characteristics during nanoparticle synthesis with short double pulses are presented. In particular, the composition and the expansion dynamics of the ablated material are examined. The latest progress achieved in modeling laser-matter interactions in double pulse regime is discussed. The correlation between ablation efficiency and nanoparticle generation is assessed and compared with numerical simulations, the influence of interpulse delay on metals ablation being revealed.

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