Optimally enhanced optical emission in laser-induced air plasma by femtosecond double-pulse

Journal Article · Tue Oct 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4825346· OSTI ID:22218555

Chen, Anmin ^[1]; Li, Suyu; Li, Shuchang; Jiang, Yuanfei; Ding, Dajun ^[1]; Shao, Junfeng; Wang, Tingfeng ^[2]; Huang, Xuri ^[3]; Jin, Mingxing ^[1]

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1. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 (China)
2. State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033 (China)
3. Institute of Theoretical Chemistry, State Key Laboratory of Theoretical and Computational Chemistry, Jilin University, Changchun 130012 (China)

In laser-induced breakdown spectroscopy, a femtosecond double-pulse laser was used to induce air plasma. The plasma spectroscopy was observed to lead to significant increase of the intensity and reproducibility of the optical emission signal compared to femtosecond single-pulse laser. In particular, the optical emission intensity can be optimized by adjusting the delay time of femtosecond double-pulse. An appropriate pulse-to-pulse delay was selected, that was typically about 50 ps. This effect can be especially advantageous in the context of femtosecond laser-induced breakdown spectroscopy, plasma channel, and so on.

• OSTI ID: 22218555
• Journal Information: Physics of Plasmas, Vol. 20, Issue 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
COMPARATIVE EVALUATIONS
EMISSION SPECTROSCOPY
LASER-PRODUCED PLASMA
LASERS
LIGHT TRANSMISSION
PLASMA DIAGNOSTICS
PULSES
TIME DELAY
VELOCITY