Laser-induced molecular fluorescence diagnosis of aluminum monoxide evolution in laser-induced plasma

Jiaming Li; Manling Xu; Xiangyou Li; Qiongxiong Ma; Nan Zhao; Qingmao Zhang; Liang Guo; Yongfeng Lu

doi:10.1088/1612-202X/ab1013

Laser-induced molecular fluorescence diagnosis of aluminum monoxide evolution in laser-induced plasma

Jiaming Li, Manling Xu, Xiangyou Li, Qiongxiong Ma, Nan Zhao, Qingmao Zhang, Liang Guo, Yongfeng Lu

Electrical & Computer Engineering

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

1 Scopus citations

Abstract

Molecular evolution in laser-induced breakdown spectroscopy (LIBS) is conventionally diagnosed by observing molecular spontaneous emission (SE). In this work, laser-induced molecular fluorescence (LIMF) was introduced to investigate molecular evolution in laser-induced plasma. Aluminium monoxide (AlO) was taken as a typical example for demonstration. AlO molecules in the X²Σ⁺ state were stimulated by a 484.82 nm laser beam, and then 510.21 nm fluorescence was observed. Compared with conventional SE in LIBS, the proposed LIMF demonstrated that it took more time to fully combine aluminum and oxygen atoms to AlO molecules. Moreover, the longer lifetime of the AlO in plasma was observed.

Original language	English (US)
Article number	55701
Journal	Laser Physics Letters
Volume	16
Issue number	5
DOIs	https://doi.org/10.1088/1612-202X/ab1013
State	Published - Apr 10 2019

Keywords

Laser-induced breakdown spectroscopy (LIBS)
aluminum monoxide (AlO)
laser-induced fluorescence
laser-induced plasma

ASJC Scopus subject areas

Instrumentation
Physics and Astronomy (miscellaneous)

Access to Document

10.1088/1612-202X/ab1013

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title = "Laser-induced molecular fluorescence diagnosis of aluminum monoxide evolution in laser-induced plasma",

abstract = "Molecular evolution in laser-induced breakdown spectroscopy (LIBS) is conventionally diagnosed by observing molecular spontaneous emission (SE). In this work, laser-induced molecular fluorescence (LIMF) was introduced to investigate molecular evolution in laser-induced plasma. Aluminium monoxide (AlO) was taken as a typical example for demonstration. AlO molecules in the X2Σ+ state were stimulated by a 484.82 nm laser beam, and then 510.21 nm fluorescence was observed. Compared with conventional SE in LIBS, the proposed LIMF demonstrated that it took more time to fully combine aluminum and oxygen atoms to AlO molecules. Moreover, the longer lifetime of the AlO in plasma was observed.",

keywords = "Laser-induced breakdown spectroscopy (LIBS), aluminum monoxide (AlO), laser-induced fluorescence, laser-induced plasma",

author = "Jiaming Li and Manling Xu and Xiangyou Li and Qiongxiong Ma and Nan Zhao and Qingmao Zhang and Liang Guo and Yongfeng Lu",

year = "2019",

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doi = "10.1088/1612-202X/ab1013",

language = "English (US)",

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journal = "Laser Physics Letters",

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T1 - Laser-induced molecular fluorescence diagnosis of aluminum monoxide evolution in laser-induced plasma

AU - Li, Jiaming

AU - Xu, Manling

AU - Li, Xiangyou

AU - Ma, Qiongxiong

AU - Zhao, Nan

AU - Zhang, Qingmao

AU - Guo, Liang

AU - Lu, Yongfeng

PY - 2019/4/10

Y1 - 2019/4/10

N2 - Molecular evolution in laser-induced breakdown spectroscopy (LIBS) is conventionally diagnosed by observing molecular spontaneous emission (SE). In this work, laser-induced molecular fluorescence (LIMF) was introduced to investigate molecular evolution in laser-induced plasma. Aluminium monoxide (AlO) was taken as a typical example for demonstration. AlO molecules in the X2Σ+ state were stimulated by a 484.82 nm laser beam, and then 510.21 nm fluorescence was observed. Compared with conventional SE in LIBS, the proposed LIMF demonstrated that it took more time to fully combine aluminum and oxygen atoms to AlO molecules. Moreover, the longer lifetime of the AlO in plasma was observed.

AB - Molecular evolution in laser-induced breakdown spectroscopy (LIBS) is conventionally diagnosed by observing molecular spontaneous emission (SE). In this work, laser-induced molecular fluorescence (LIMF) was introduced to investigate molecular evolution in laser-induced plasma. Aluminium monoxide (AlO) was taken as a typical example for demonstration. AlO molecules in the X2Σ+ state were stimulated by a 484.82 nm laser beam, and then 510.21 nm fluorescence was observed. Compared with conventional SE in LIBS, the proposed LIMF demonstrated that it took more time to fully combine aluminum and oxygen atoms to AlO molecules. Moreover, the longer lifetime of the AlO in plasma was observed.

KW - Laser-induced breakdown spectroscopy (LIBS)

KW - aluminum monoxide (AlO)

KW - laser-induced fluorescence

KW - laser-induced plasma

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