激光诱导氢等离子体衰变中空间和时间分辨电子数密度

Laser Applications to Chemical Analysis Pub Date : 1900-01-01 DOI:10.1364/laca.1994.tub.3

C. Parigger, D. Plemmons, J. Lewis

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引用次数: 0

摘要

斯塔克加宽氢巴尔默系列谱线宽度的测量可以用来推断光学产生的等离子体的电子数密度。典型的光击穿等离子体是瞬态的，具有空间结构。例如，自聚焦效应可能引起密度变化，这种变化可以用衍射技术来测量膨胀的等离子体引起数密度的变化，这种变化实际上可能形成高强度激光脉冲的光管

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Spatially and Temporally Resolved Electron Number Densities in a Decaying Laser-Induced Hydrogen Plasma

Measurements of the widths of Stark broadened hydrogen Balmer Series lines can be used to infer electron number densities of optically created plasmas. A typical optical breakdown plasma is transient and shows spatial structure. For example, self-focusing effects may induce density variations which may be measured using diffraction techniques.1 The expanding plasma induces number density variations that in fact may form a light pipe for high intensity laser pulses.2

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Laser Applications to Chemical Analysis

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