From single pulse to double pulse ns-Laser Induced Breakdown Spectroscopy under water: Elemental analysis of aqueous solutions and submerged solid samples

Giacomo, A. De; Dell’Aglio, M.; Pascale, O. De; Capitelli, M.

doi:10.1016/j.sab.2007.06.008

Cited by 199 publications

(146 citation statements)

References 101 publications

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“…Laser-induced breakdown spectroscopy (LIBS) is a spectroscopic technique that uses a focused, pulsed laser to form a plasma in air as well as in or on liquid and solid surfaces [1][2][3][4][5][6][7][8][9]. By analyzing the emission spectra from the LIBS plasma, the atomic composition of an analyte can be determined.…”

Section: Introductionmentioning

confidence: 99%

“…DP-LIBS involves the use of two laser pulses, either collinear or orthogonal, that are separated temporally on the order of nano-or microseconds. An orthogonal configuration uses a non-ablative pulse parallel to the surface that is fired before [26][27][28][29][30]1,[31][32][33][34][35][36]. Using an orthogonal DP-LIBS configuration with a non-ablative pulse fired above the surface followed by an analytic/ablation pulse, Stratis et al found a 20-fold improvement in LIBS spectral intensity compared to SP-LIBS on glass [34].…”

Section: Introductionmentioning

confidence: 99%

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Effect of atmosphere on collinear double-pulse laser-induced breakdown spectroscopy

Effenberger

Scott

2011

Anal Bioanal Chem

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Double-pulse laser-induced breakdown spectroscopy (DP-LIBS) has been shown to enhance LIBS spectra. Several researchers have reported significant increases in signal-to-noise (S/N) and/or spectral intensity compared to single-pulse (SP) LIBS. In addition to DP-LIBS, atmospheric conditions can also increase sensitivity. Thus, in this study, a collinear DP-LIBS scheme was used along with manipulation of the atmospheric conditions. The DP-LIBS scheme consisted of an initial 45 mJ pulse at 1064 nm fired into a sample contained in a controlled atmospheric/vacuum chamber. A second analytical 45 mJ pulse at 1064 nm was then fired 0 to 200 μs after and along the same path of the first pulse. Ar, He, and air at pressures ranging from atmospheric pressure to 1 Torr are introduced during DP-LIBS and SP-LIBS experiments. For a brass sample, significant increases in the spectral intensities of Cu and Zn lines were observed in DP-LIBS under Ar compared to DP-LIBS in air. It was also found that Cu and Zn lines acquired with SP-LIBS in Ar are nearly as intense as DP-LIBS in air. While collinear DP-LIBS is effective for increasing the sensitivity for some reduced atmospheres (i.e., Ar and air at 630 to 100 Torr and He at 300 Torr), the enhanced spectral intensity ultimately dropped off as the pressure was reduced below 10 Torr for all atmospheric compositions in the experimental arrangement used in this study. At all pressures of air and Ar, the plasma temperature remained rather constant with increased inter-pulse delays; however, the plasma temperature was more variable for different He gas pressures and inter-pulse delays.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of atmosphere on collinear double-pulse laser-induced breakdown spectroscopy

Effenberger

Scott

2011

Anal Bioanal Chem

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“…The lifetime of laser plume starts to extinguish on the range of 10 −8 − 10 −7 s transmitting its energy to the surrounding medium and the solid target [85]. The transmission of energy to the surrounding medium triggers the formation of a cavitation bubble, which expands to a maximum radius in the order of millimeters [86]. Its expansion causes a consumption of energy ending up to collapse.…”

Section: Pulsed Laser Ablation In Liquidsmentioning

confidence: 99%

Synthesis of colloidal nanomaterials through femtosecond laser ablation

Mendieta¹,

Omar²

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les queda respirar / abrir los ojos descubrir las raíces del horror inventar paz así sea a ponchazos entenderse con la naturaleza y con la lluvia y los relámpagos y con el sentimiento y con la muerte esa loca de atar y desatar.¿qué les queda por probar a los jóvenes en este mundo de consumo y humo?¿vértigo? ¿asaltos? ¿discotecas?también les queda discutir con dios tanto si existe como si no existe tender manos que ayudan / abrir puertas entre el corazón propio y el ajeno / sobre todo les queda hacer futuro a pesar de los ruines de pasado y los sabios granujas del presente.

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“…6000-15000 K), mint a levegőben keltett plazmáké [176]. Ezen körülmények javítására az irodalomban főként két-impulzusos technika (repetitive spark plazma= RSP, vagy double pulse= DP) használatát, [32,177,178] vagy az impulzus időtartamának jelentős növelését (pl. 200 ns) [179,180], esetleg kellően nagy impulzusenergia (~80-100 mJ) alkalmazását [181] javasolják.…”

Section: Libs Mérések Folyadékokbanunclassified

“…A LIP plazma élettartama a buborékban mindössze pár μs, míg a buborék élettartama nagyságrendileg pár száz μs, emiatt a második impulzus által keltett mikroplazma az első impulzus által generált, állandónak tekinthető környezetben tud tágulni, fejlődni. Ha az impulzuskövetési idő túl rövid (a buborék még a tágulási szakaszban van), akkor a buborék belsejében uralkodó magas nyomás kioltja az emissziót és a spektrum egy folyadékba merült céltárgyon felvett SP-LIBS zajos spektrumhoz lesz hasonló [184]. Hosszabb késleltetési idő alkalmazásával (a buborék maximális mérete környékén) a belső nyomás közel 1 atmoszférára esik le, és így a spektrumban jól felbontott atom-és ionvonalak jelennek meg.…”

Section: Libs Mérések Folyadékokbanunclassified

Analitikai módszerek fejlesztése folyadék és szilárd minták LIBS vizsgálatára

Metzinger

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From single pulse to double pulse ns-Laser Induced Breakdown Spectroscopy under water: Elemental analysis of aqueous solutions and submerged solid samples

Cited by 199 publications

References 101 publications

Effect of atmosphere on collinear double-pulse laser-induced breakdown spectroscopy

Effect of atmosphere on collinear double-pulse laser-induced breakdown spectroscopy

Synthesis of colloidal nanomaterials through femtosecond laser ablation

Analitikai módszerek fejlesztése folyadék és szilárd minták LIBS vizsgálatára

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