Nanosecond pulse width dependence of nonphotochemical laser-induced nucleation of potassium chloride

Martin R. Ward, Iain Ballingall, Matthew L. Costen, Kenneth G. McKendrick, Andrew J. Alexander

Research output: Contribution to journalArticle

Abstract

The effect of laser pulse width on the efficiency of nonphotochemical laser-induced nucleation (NPLIN) of supersaturated aqueous solutions of KCl has been studied. At equivalent peak-power densities it was observed that the same fractions of samples were nucleated for both short (6 ns) and long (200 ns) near-infrared laser pulses. The results show that the efficiency depends on the peak-power density and not on the duration, or total energy, of the laser pulses. It is concluded that the mechanism is unlikely to be based solely on diffusion of solute to a sub-critical cluster. © 2009 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)25-28
Number of pages4
JournalChemical Physics Letters
Volume481
Issue number1-3
DOIs
Publication statusPublished - 2009

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potassium chlorides
pulse duration
nucleation
radiant flux density
lasers
pulses
infrared lasers
solutes
aqueous solutions
energy

Cite this

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title = "Nanosecond pulse width dependence of nonphotochemical laser-induced nucleation of potassium chloride",
abstract = "The effect of laser pulse width on the efficiency of nonphotochemical laser-induced nucleation (NPLIN) of supersaturated aqueous solutions of KCl has been studied. At equivalent peak-power densities it was observed that the same fractions of samples were nucleated for both short (6 ns) and long (200 ns) near-infrared laser pulses. The results show that the efficiency depends on the peak-power density and not on the duration, or total energy, of the laser pulses. It is concluded that the mechanism is unlikely to be based solely on diffusion of solute to a sub-critical cluster. {\circledC} 2009 Elsevier B.V. All rights reserved.",
author = "Ward, {Martin R.} and Iain Ballingall and Costen, {Matthew L.} and McKendrick, {Kenneth G.} and Alexander, {Andrew J.}",
year = "2009",
doi = "10.1016/j.cplett.2009.09.049",
language = "English",
volume = "481",
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journal = "Chemical Physics Letters",
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publisher = "Elsevier",
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}

Nanosecond pulse width dependence of nonphotochemical laser-induced nucleation of potassium chloride. / Ward, Martin R.; Ballingall, Iain; Costen, Matthew L.; McKendrick, Kenneth G.; Alexander, Andrew J.

In: Chemical Physics Letters, Vol. 481, No. 1-3, 2009, p. 25-28.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Nanosecond pulse width dependence of nonphotochemical laser-induced nucleation of potassium chloride

AU - Ward, Martin R.

AU - Ballingall, Iain

AU - Costen, Matthew L.

AU - McKendrick, Kenneth G.

AU - Alexander, Andrew J.

PY - 2009

Y1 - 2009

N2 - The effect of laser pulse width on the efficiency of nonphotochemical laser-induced nucleation (NPLIN) of supersaturated aqueous solutions of KCl has been studied. At equivalent peak-power densities it was observed that the same fractions of samples were nucleated for both short (6 ns) and long (200 ns) near-infrared laser pulses. The results show that the efficiency depends on the peak-power density and not on the duration, or total energy, of the laser pulses. It is concluded that the mechanism is unlikely to be based solely on diffusion of solute to a sub-critical cluster. © 2009 Elsevier B.V. All rights reserved.

AB - The effect of laser pulse width on the efficiency of nonphotochemical laser-induced nucleation (NPLIN) of supersaturated aqueous solutions of KCl has been studied. At equivalent peak-power densities it was observed that the same fractions of samples were nucleated for both short (6 ns) and long (200 ns) near-infrared laser pulses. The results show that the efficiency depends on the peak-power density and not on the duration, or total energy, of the laser pulses. It is concluded that the mechanism is unlikely to be based solely on diffusion of solute to a sub-critical cluster. © 2009 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.cplett.2009.09.049

DO - 10.1016/j.cplett.2009.09.049

M3 - Article

VL - 481

SP - 25

EP - 28

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 1-3

ER -