Time-resolved emission and scattering imaging of plume dynamics and nanoparticle ejection in femtosecond laser ablation of silver thin films

Minok Park; Jinhong Jeun; Gyoowan Han; Costas P. Grigoropoulos

首页> 外文期刊>Applied Physics Letters >Time-resolved emission and scattering imaging of plume dynamics and nanoparticle ejection in femtosecond laser ablation of silver thin films

【24h】

Time-resolved emission and scattering imaging of plume dynamics and nanoparticle ejection in femtosecond laser ablation of silver thin films

机译：银薄膜飞秒激光烧蚀中羽流动力学和纳米粒子喷射的时间分离的排放和散射成像

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Time-resolved emission and scattering imaging are employed to analyze the ablation mechanisms of silver thin films induced by femtosecond laser irradiation of Gaussian intensity profile under different laser fluences and gas background pressures. At fluences near the ablation threshold, nanoparticles (NPs) of 40nm-100nm in size are ejected in the vertical direction from the target sample. The average ejection speed of these NPs increases with the laser fluence and also as the background gas pressure drops from ambient atmospheric to ~10~(-5)Torr. At higher fluences, a plume is formed at the center of the laser beam and NPs are released in oblique trajectories from the peripheral area of the laser-irradiated spot.

机译：采用时间分辨的排放和散射成像来分析不同激光流量流量和瓦斯背景压力下高斯激光辐射的飞秒激光照射诱导的银薄膜的消融机制。在近烧蚀阈值附近的流量，尺寸尺寸为40nm-100nm的纳米颗粒（NPS）在靶样品中沿垂直方向喷射。这些NP的平均喷射速度随着激光器的增加而增加，并且随着背景气体压力从环境大气压下降到〜10〜（-5）托。在较高的流速下，在激光束的中心处形成羽流，并且NPS在来自激光照射点的外围区域的倾斜轨迹中释放。

著录项

来源
《Applied Physics Letters》 |2020年第23期|234105.1-234105.5|共5页
作者
Minok Park; Jinhong Jeun; Gyoowan Han; Costas P. Grigoropoulos;
展开▼
作者单位

Laser Thermal Laboratory Department of Mechanical Engineering University of California Berkeley California 94720-1740 USA;

Samsung Display 1 Samsung-ro Giheung-gu Yongin-si Gyeonggi-do 17113 South Korea;

Samsung Display 1 Samsung-ro Giheung-gu Yongin-si Gyeonggi-do 17113 South Korea;

Laser Thermal Laboratory Department of Mechanical Engineering University of California Berkeley California 94720-1740 USA;

展开▼
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);
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Nanoparticle generation and transport resulting from femtosecond laser ablation of ultrathin metal films: Time-resolved measurements and molecular dynamics simulations [J] . C. M. Rouleau, C.-Y. Shih, C. Wu, Applied Physics Letters . 2014,第19期

机译：飞秒激光烧蚀超薄金属膜产生的纳米粒子的产生和传输：时间分辨的测量和分子动力学模拟
2. Time-resolved imaging of flyer dynamics for femtosecond laser-induced backward transfer of solid polymer thin films [J] . Feinaeugle M., Gregorcic P., Heath D. J., Applied Surface Science . 2017,第PTa2期

机译：飞秒动力学的时间分辨成像，用于飞秒激光诱导的固态聚合物薄膜的向后转移
3. Surface enhanced Raman scattering of defective TiO_2 thin film decorated with silver nanoparticles by laser ablation [J] . Hong Ruijin, Shi Jingqi, Li Zhengwang, Optical Materials . 2020,第Nova期

机译：表面增强的拉曼散射缺陷TiO_2薄膜通过激光烧蚀用银纳米粒子装饰
4. In situ diagnostics of nanomaterial synthesis by laser ablation: time-resolved photoluminescence spectra and imaging of gas-suspended nanoparticles deposited for thin films [C] . D. B. Geohegan, A. A. Puretzky, A. Meldrum, Symposium on microcrystalline and nanocrystalline semiconductors . 1999

机译：通过激光烧蚀原位诊断纳米材料合成：时间分辨的光致发光光谱和薄膜沉积的气体悬浮纳米粒子的成像
5. Characterization of ablation and atomic emission enhancements in dual-pulse laser-induced breakdown spectroscopy using femtosecond- and nanosecond-pulse lasers. [D] . Scaffidi, Jonathan Peter. 2005

机译：使用飞秒和纳秒脉冲激光的双脉冲激光诱导击穿光谱中的烧蚀和原子发射增强的表征。
6. Femtosecond time-resolved photodissociation dynamics of methyl halide molecules on ultrathin gold films [O] . Mihai E Vaida, Robert Tchitnga, Thorsten M Bernhardt 2015

机译：飞秒时间分辨超薄金膜上卤代甲烷分子的光解离动力学
7. Time-resolved imaging of flyer dynamics for femtosecond laser-induced backward transfer of solid polymer thin films [O] . Feinaeugle M., Gregorčič P., Heath D.J., 2017

机译：飞秒动力学的时间分辨成像，用于飞秒激光诱导的固态聚合物薄膜的向后转移
8. Species-resolved imaging and gated photon counting spectroscopy of laser ablation plume dynamics during KrF- and ArF-laser PLD of amorphous diamond films [R] . Geohegan, D. B. , Puretzky, A. A. 1995

机译：非晶金刚石薄膜KrF和arF激光pLD中激光烧蚀羽流动力学的物种分辨成像和门控光子计数光谱

Time-resolved emission and scattering imaging of plume dynamics and nanoparticle ejection in femtosecond laser ablation of silver thin films

摘要

著录项

相似文献

相关主题

期刊订阅