Non-gated laser-induced breakdown spectroscopy in bulk water by position-selective detection

Journal Article · Mon Sep 14 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4931128· OSTI ID:22482069

Tian, Ye; Xue, Boyang; Song, Jiaojian; Lu, Yuan; Zheng, Ronger ^[1]

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1. Optics and Optoelectronics Laboratory, Ocean University of China, Qingdao 266100 (China)

Temporal and spatial evolutions of the laser-induced plasma in bulk water are investigated using fast imaging and emission spectroscopic techniques. By tightly focusing a single-pulse nanosecond Nd: YAG laser beam into the bulk water, we generate a strongly expanded plasma with high reproducibility. Such a strong expanding plasma enables us to obtain well-resolved spectral lines by means of position-selective detection; hence, the time-gated detector becomes abdicable. The present results suggest not only a possible non-gated approach for underwater laser-induced breakdown spectroscopy but also give an insight into the plasma generation and expansion in bulk water.

• OSTI ID: 22482069
• Journal Information: Applied Physics Letters, Vol. 107, Issue 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DETECTION
EMISSION
NEODYMIUM LASERS
PLASMA
PULSES
SPECTROSCOPY
UNDERWATER
WATER