单脉冲超短激光烧蚀Al、Cu、Ni、W四种金属的测量

IF 2.3 Q2 OPTICS
T. Genieys, M. Sentis, O. Uteza
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引用次数: 4

摘要

摘要我们提供了四种后过渡金属和过渡金属[铝(Al)、铜(Cu)、镍(Ni)和钨(W)]在单个800nm激光脉冲照射下,在从100飞秒(fs)脉冲持续时间到15飞秒的超短范围内烧蚀的测量结果,覆盖了迄今为止很少探索的时间范围。对于测试的每种金属和脉冲持续时间,我们测量了其烧蚀特性(深度和直径),作为入射能量的函数,使我们能够确定其激光诱导烧蚀阈值和单次发射状态下的烧蚀速率。对于所研究的所有金属,我们观察到恒定的烧蚀阈值通量是脉冲持续时间的函数,将该比例定律扩展到几个光学周期的脉冲持续时间。我们提供了调整入射通量以最大化能量比消融深度的兴趣的证据,但也提供了不存在与使用极短脉冲持续时间用于消融目的相关的任何特殊优势的证据。已经在单脉冲状态和空气环境中获得了这些信息丰富且详细的消融数据。它们可以作为奖励反馈,用于进一步建立飞秒激光微加工和金属和金属基部件的激光损伤处理的智能策略,以及提高飞秒激光与金属在超短状态下相互作用建模的准确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Measurement of ultrashort laser ablation of four metals (Al, Cu, Ni, W) in the single-pulse regime
Abstract We provide measurements of the ablation of four post-transition and transition metals [aluminum (Al), copper (Cu), nickel (Ni) and tungsten (W)] irradiated by single 800 nm laser pulses, in ultrashort regime from 100 femtosecond (fs) pulse duration down to 15 fs covering a temporal range little explored as yet. For each metal and pulse duration tested, we measured its ablation characteristics (depth and diameter) as a function of incident energy allowing us to determine its laser-induced ablation threshold and ablation rate in a single-shot regime. For all the metals studied, we observed a constant ablation threshold fluence as a function of pulse duration extending this scaling law to pulse duration of few-optical-cycles. We provide evidence of the interest of adjusting the incident fluence to maximize the energy specific ablation depth but also of the absence of any peculiar advantage related to the use of extremely short-pulse duration for ablation purposes. Those informative and detailed ablation data have been obtained in the single-pulse regime and in air ambiance. They can serve as rewarding feedback for further establishing smart strategy for femtosecond laser micromachining and laser damage handling of metallic and metal-based components as well as for enhancing accuracy of modeling of fs laser interaction with metals in ultrashort regime.
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来源期刊
CiteScore
4.40
自引率
0.00%
发文量
23
期刊介绍: Advanced Optical Technologies is a strictly peer-reviewed scientific journal. The major aim of Advanced Optical Technologies is to publish recent progress in the fields of optical design, optical engineering, and optical manufacturing. Advanced Optical Technologies has a main focus on applied research and addresses scientists as well as experts in industrial research and development. Advanced Optical Technologies partners with the European Optical Society (EOS). All its 4.500+ members have free online access to the journal through their EOS member account. Topics: Optical design, Lithography, Opto-mechanical engineering, Illumination and lighting technology, Precision fabrication, Image sensor devices, Optical materials (polymer based, inorganic, crystalline/amorphous), Optical instruments in life science (biology, medicine, laboratories), Optical metrology, Optics in aerospace/defense, Simulation, interdisciplinary, Optics for astronomy, Standards, Consumer optics, Optical coatings.
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