首页> 外文OA文献 >Imaging of the Ejection Process of Nanosecond Laser-induced forward Transfer of Gold
【2h】

Imaging of the Ejection Process of Nanosecond Laser-induced forward Transfer of Gold

机译:纳秒激光诱导的金向前转移的喷射过程的成像

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Laser-induced forward transfer is a direct-write process suitable for high precision 3D printing of several materials. However, the driving forces related to the ejection mechanism of the donor ma-terial are still under debate. To gain further insights into the ejection dynamics, this article presents results of a series of imaging experiments of the release process of nanosecond LIFT of a 200 nm thick gold donor layer. Images were obtained using a setup which consists of two dual-shutter cam-eras. Both cameras were combined with a 50× long-distance microscope and used to capture coaxial and side-view images of the ejection process. Bright field illumination of the scene was accom-plished by a 6 ns dual-cavity laser source. For laser fluence just above the transfer threshold of 140 mJ/cm2 , the formation of a jet and the subsequent release of a single droplet is observed. The drop-let diameter is estimated to be about 2 μm. For laser fluences above 400 mJ/cm2 the formation and rupture of a blistering bubble is observed, which ultimately leads to an undesirable ejection of mul-tiple droplets
机译:激光诱导的正向传输是一种直接写入过程,适用于多种材料的高精度3D打印。但是,与供体材料的排出机制有关的驱动力仍在争论中。为了进一步了解喷射动力学,本文介绍了一系列成像实验的结果,这些成像实验涉及200 nm厚的金供体层的纳秒级LIFT释放过程。使用由两个双快门相机组成的设置获得图像。这两款相机均与50倍长距离显微镜组合在一起,用于捕获喷射过程的同轴和侧视图图像。 6 ns双腔激光源实现了场景的明场照明。对于刚好高于传输阈值140 mJ / cm2的激光注量,观察到了射流的形成以及随后单个液滴的释放。液滴直径估计为约2μm。对于高于400 mJ / cm2的激光注量,观察到起泡气泡的形成和破裂,最终导致不希望的多液滴喷出

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号