Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a Simultaneous CO/sub 2/ Laser Pulse

Dennis K. Killinger; Susan D. Allen; Robert D. Waterbury; Chris Stefano; Edwin L. Dottery

doi:10.1364/OE.15.012905

Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a Simultaneous CO/sub 2/ Laser Pulse

Dennis K. Killinger, Susan D. Allen, Robert D. Waterbury, Chris Stefano, Edwin L. Dottery

Research output: Contribution to journal › Article › peer-review

Abstract

For the first time to the best of our knowledge, a simultaneous 10.6 μm CO2 laser pulse has been used to enhance the Laser Induced Breakdown Spectroscopy (LIBS) emission from a 1.064 μm Nd:YAG laser induced plasma on a hard target. The enhancement factor was on the order of 25 to 300 times, depending upon the emission lines observed. For an alumina ceramic substrate the Al emission lines at 308 nm and Fe impurity line at 278 nm showed an increase of 60x and 119x, respectively. The output energy of the Nd:YAG laser was 50 mJ/pulse focused to a 1 mm diameter spot to produce breakdown. The CO2 laser pulse had a similar energy density of 40 mJ/mm2 . Timing overlap of the two laser pulses within 1 microsecond was important for enhancement to be observed. An observed feature was the differential enhancement between different elemental species and also between different ionization states, which may be helpful in the application of LIBS for multi-element analysis.

Original language	American English
Journal	Optics Express
Volume	15
DOIs	https://doi.org/10.1364/OE.15.012905
State	Published - Sep 24 2007
Externally published	Yes

Keywords

spectroscopy
laser induced breakdown

Disciplines

Physical Sciences and Mathematics

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10.1364/OE.15.012905License: CC BY

Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a SFinal published version, 296 KBLicense: CC BY

Cite this

@article{1d8689380a344587b0db9f99e74def6f,

title = "Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a Simultaneous CO/sub 2/ Laser Pulse",

abstract = " For the first time to the best of our knowledge, a simultaneous 10.6 μm CO2 laser pulse has been used to enhance the Laser Induced Breakdown Spectroscopy (LIBS) emission from a 1.064 μm Nd:YAG laser induced plasma on a hard target. The enhancement factor was on the order of 25 to 300 times, depending upon the emission lines observed. For an alumina ceramic substrate the Al emission lines at 308 nm and Fe impurity line at 278 nm showed an increase of 60x and 119x, respectively. The output energy of the Nd:YAG laser was 50 mJ/pulse focused to a 1 mm diameter spot to produce breakdown. The CO2 laser pulse had a similar energy density of 40 mJ/mm2 . Timing overlap of the two laser pulses within 1 microsecond was important for enhancement to be observed. An observed feature was the differential enhancement between different elemental species and also between different ionization states, which may be helpful in the application of LIBS for multi-element analysis.",

keywords = "spectroscopy, laser induced breakdown",

author = "Killinger, {Dennis K.} and Allen, {Susan D.} and Waterbury, {Robert D.} and Chris Stefano and Dottery, {Edwin L.}",

year = "2007",

month = sep,

day = "24",

doi = "10.1364/OE.15.012905",

language = "American English",

volume = "15",

journal = "Optics Express",

issn = "1094-4087",

}

TY - JOUR

T1 - Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a Simultaneous CO/sub 2/ Laser Pulse

AU - Killinger, Dennis K.

AU - Allen, Susan D.

AU - Waterbury, Robert D.

AU - Stefano, Chris

AU - Dottery, Edwin L.

PY - 2007/9/24

Y1 - 2007/9/24

N2 - For the first time to the best of our knowledge, a simultaneous 10.6 μm CO2 laser pulse has been used to enhance the Laser Induced Breakdown Spectroscopy (LIBS) emission from a 1.064 μm Nd:YAG laser induced plasma on a hard target. The enhancement factor was on the order of 25 to 300 times, depending upon the emission lines observed. For an alumina ceramic substrate the Al emission lines at 308 nm and Fe impurity line at 278 nm showed an increase of 60x and 119x, respectively. The output energy of the Nd:YAG laser was 50 mJ/pulse focused to a 1 mm diameter spot to produce breakdown. The CO2 laser pulse had a similar energy density of 40 mJ/mm2 . Timing overlap of the two laser pulses within 1 microsecond was important for enhancement to be observed. An observed feature was the differential enhancement between different elemental species and also between different ionization states, which may be helpful in the application of LIBS for multi-element analysis.

AB - For the first time to the best of our knowledge, a simultaneous 10.6 μm CO2 laser pulse has been used to enhance the Laser Induced Breakdown Spectroscopy (LIBS) emission from a 1.064 μm Nd:YAG laser induced plasma on a hard target. The enhancement factor was on the order of 25 to 300 times, depending upon the emission lines observed. For an alumina ceramic substrate the Al emission lines at 308 nm and Fe impurity line at 278 nm showed an increase of 60x and 119x, respectively. The output energy of the Nd:YAG laser was 50 mJ/pulse focused to a 1 mm diameter spot to produce breakdown. The CO2 laser pulse had a similar energy density of 40 mJ/mm2 . Timing overlap of the two laser pulses within 1 microsecond was important for enhancement to be observed. An observed feature was the differential enhancement between different elemental species and also between different ionization states, which may be helpful in the application of LIBS for multi-element analysis.

KW - spectroscopy

KW - laser induced breakdown

UR - https://commons.erau.edu/publication/1264

U2 - 10.1364/OE.15.012905

DO - 10.1364/OE.15.012905

M3 - Article

SN - 1094-4087

VL - 15

JO - Optics Express

JF - Optics Express

ER -

Enhancement of Nd: YAG LIBS Emission of a Remote Target Using a Simultaneous CO/sub 2/ Laser Pulse

Abstract

Keywords

Disciplines

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