Laser-induced shockwave propagation from ablation in a cavity

The propagation of laser-induced shockwaves from ablation inside of cavities was determined from time-resolved shadowgraph images. The temperature and electron number density of the laser-induced plasma was determined from spectroscopic measurements. These properties were compared to those for laser...

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Bibliographic Details
Published in:Applied physics letters 2006-02, Vol.88 (6), p.061502-061502-3
Main Authors: Zeng, Xianzhong, Mao, Xianglei, Mao, Samuel S., Wen, Sy-Bor, Greif, Ralph, Russo, Richard E.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
ELECTRON DENSITY
ELECTRON TEMPERATURE
ION TEMPERATURE
LASERS
LIGHT TRANSMISSION
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLUMES
SHOCK WAVES
TIME RESOLUTION
VAPORS
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Summary:The propagation of laser-induced shockwaves from ablation inside of cavities was determined from time-resolved shadowgraph images. The temperature and electron number density of the laser-induced plasma was determined from spectroscopic measurements. These properties were compared to those for laser ablation on the flat surface under the same energy and background gas condition. A theoretical model was proposed to determine the amount of energy and vaporized mass stored in the vapor plume based on these measurements.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2172738