• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Theoretical investigations on multiple-reflection and Rayleigh absorption-emission-scattering effects in laser drilling
【24h】

Theoretical investigations on multiple-reflection and Rayleigh absorption-emission-scattering effects in laser drilling

机译：激光钻孔中多次反射和瑞利吸收-发射-散射效应的理论研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A fundamental study of laser drilling was performed with computational analysis. High power Q-switched diode-pumped laser drilling simulations were conducted on N-type silicon wafers. In the numerical model, the volume of fluid method was adopted to trace the free surface of the drilled-hole with the governing equations including continuity, momentum, and energy equation. The laser beam was considered as a surface heat flux with near-Gaussian distribution. The simulation model took into account the physical phenomena, taking place during drilling of the silicon wafer, such as the effects of recoil pressure producing a narrow and deep profile, Fresnel absorption transferring the energy from laser beam to workpiece, multiple-reflection raising the absorption of laser energy, and Rayleigh absorption-emission-scattering absorbing and distributing the entrance laser energy. In particular, a novel model for laser drilling was proposed from the view point of the transmitted, absorbed, emitted, and scattered light.
机译：通过计算分析对激光钻孔进行了基础研究。在N型硅晶片上进行了高功率Q开关二极管泵浦激光钻孔仿真。在数值模型中，采用流体体积法来追踪钻孔的自由表面，其控制方程包括连续性，动量和能量方程。激光束被认为是具有近高斯分布的表面热通量。该仿真模型考虑了在硅晶片钻孔过程中发生的物理现象，例如反冲压力产生窄而深的轮廓的影响，菲涅耳吸收将能量从激光束传递到工件，多次反射提高了吸收的激光能量，瑞利吸收-发射-散射吸收和分配入射激光能量。特别地，从透射，吸收，发射和散射的光的角度，提出了一种新型的激光钻孔模型。

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