Laser-impact-induced splashing: an analysis of the splash crown evolution after Nd:YAG ns-pulse laser impact on a liquid tin pool

Hermens J.; Gelderblom H.; Liu B.; Duffhues J.; Rindt P.; Versolato O. O.

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Laser-impact-induced splashing: an analysis of the splash crown evolution after Nd:YAG ns-pulse laser impact on a liquid tin pool

机译：激光冲击诱导的溅射：ND后的溅冠演变分析：YAG NS脉冲激光对液体锡池的影响

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The splash created by intense laser pulse impact onto a liquid tin layer is studied experimentally using time-delayed stroboscopic shadowgraphy. An 8-ns infrared (1064 nm) laser pulse is focused onto a deep liquid tin pool. Various laser spot sizes (70, 120, and 130 mu m in diameter) and various laser pulse energies (ranging 2.5-30 mJ) are used, resulting in laser fluences of similar to 10-1000 J/cm(2) inducing pronounced splashing. Specifically, we study the time evolution of the splash crown-width. The crown width expansion velocity is found to be linearly dependent on the laser energy, and independent of the focal spot size. A collapse of all crown width evolution data onto a single master curve confirms that the hydrodynamic evolution of our laser-impact-induced splash is equivalent to droplet-impact-induced splashing. Laser-impact splashing is particularly relevant, e.g. for high-brightness laser-assisted discharge-produced plasma and laser-produced plasma sources of extreme ultraviolet light for nanolithography.

机译：通过试验时间延迟的频道影像图来研究通过强烈的激光脉冲冲击到液体锡层上的飞溅。 8-NS红外（1064nm）激光脉冲聚焦到深液锡池上。使用各种激光光斑尺寸（直径为130μm）和各种激光脉冲能量（测距2.5-30MJ），导致激光流量相似至10-1000 j / cm（2）诱导发音溅。具体而言，我们研究了飞溅冠宽的时间演变。发现表冠宽度膨胀速度是线性地取决于激光能量，并且独立于焦点尺寸。所有冠宽度演化数据到单个主曲线上的崩溃证实，激光冲击诱导的飞溅的流体动力学演变相当于液滴冲击引起的溅起。激光冲击溅均特别相关，例如，对于高亮度激光辅助排出产生的等离子体和激光产生的纳米线紫外光的激光产生的等离子体源。

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《Applied physics》 |2021年第3期|44.1-44.6|共6页
作者
Hermens J.; Gelderblom H.; Liu B.; Duffhues J.; Rindt P.; Versolato O. O.;
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Adv Res Ctr Nanolithog ARCNL NL-1098 XG Amsterdam Netherlands|Eindhoven Univ Technol Dept Appl Phys Den Dolech 2 NL-5600 MB Eindhoven Netherlands;

Eindhoven Univ Technol Dept Appl Phys Den Dolech 2 NL-5600 MB Eindhoven Netherlands;

Adv Res Ctr Nanolithog ARCNL NL-1098 XG Amsterdam Netherlands|Vrije Univ Amsterdam Dept Phys & Astron Boelelaan 1081 NL-1081 HV Amsterdam Netherlands|Vrije Univ Amsterdam LaserLaB Boelelaan 1081 NL-1081 HV Amsterdam Netherlands;

Adv Res Ctr Nanolithog ARCNL NL-1098 XG Amsterdam Netherlands|Eindhoven Univ Technol Dept Appl Phys Den Dolech 2 NL-5600 MB Eindhoven Netherlands;

Eindhoven Univ Technol Dept Appl Phys Den Dolech 2 NL-5600 MB Eindhoven Netherlands;

Adv Res Ctr Nanolithog ARCNL NL-1098 XG Amsterdam Netherlands|Vrije Univ Amsterdam Dept Phys & Astron Boelelaan 1081 NL-1081 HV Amsterdam Netherlands|Vrije Univ Amsterdam LaserLaB Boelelaan 1081 NL-1081 HV Amsterdam Netherlands;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Laser-impact-induced splashing: an analysis of the splash crown evolution after Nd:YAG ns-pulse laser impact on a liquid tin pool

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