首页> 美国政府科技报告 >In-Situ Measurements of Temperature Profiles and Plume Formation at the Surfaces of Samples Irradiated by a Picosecond Laser Pulse Train
【24h】

In-Situ Measurements of Temperature Profiles and Plume Formation at the Surfaces of Samples Irradiated by a Picosecond Laser Pulse Train

机译:皮秒激光脉冲序列辐照样品表面温度分布和羽流形成的原位测量

获取原文

摘要

One-inch diameter samples of various materials, such as stainless steel, painted and unpainted aluminum, fused silica, and fiberglass composites, were irradiated by a train of picosecond-duration pulses from a free-electron laser at irradiances of 0.5 to 10 kW/cm2. These experiments were the first to examine the lethality of a train of picosecond-duration laser pulses in an irradiance regime relevant to high energy laser lethality, i.e., utilizing laser intensities that have a change of propagating a significant distance in the atmosphere. In situ diagnostics were used to measure space and time resolved temperature profiles on the laser-irradiated and back sides of the samples. Also, plumes emanating from the laser-irradiated side of the samples were recorded. Heating and cooling of the samples, melting, boiling, hole burning, flow of liquid matter, and breakup of composites were measured. Results of these experiments and a comparison to post-shot analysis of the samples are presented.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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