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【网络讲座】格物论坛:Scattering characteristics of the laser beam by film systems with particles/defects(时间7.3)
【 作者:  校对时间:2020年07月02日 15:04  访问次数: 】

讲座人:巩蕾 西安工业大学教授

讲座时间:7月3日9:00-11:00

讲座地点:腾讯会议,会议ID:589 451 6406

主办单位:物理与电子学院

欢迎光临!

  报告摘要:The optical system performance is directly influenced by the optical dielectric film quality. The detection and control of the optical dielectric film roughness and defect particles is one of the most important research points about the preparation and check and as well as performance of the optical film and the nanometer/subnano meter structural material. Extracting effectively the optical dielectric film roughness and defect character and diagnosing and controlling the optical dielectric film character have important academic significance and realistic value to improve the optical system efficiency and increase the nanometer structure material performance. Based on the electromagnetic theory of the interaction between the light and the material, the optical character of the micro-rough dielectric film and the composite light scattering character between the optical dielectric film and multi-body defect particles are studied. The influence of the defect character parameters, i.e. the size and the shape and the azimuth of the defect, to the composite light scattering between the optical dielectric film and defect particles is researched and the contributions of the defect and the micro-rough dielectric film, respectively, to the total scattered field and the coupled field are analyzed. Measuring experimentally the surface roughness and the refractive index and the extinction coefficient as well as the scattered intensity, combing with the theory and applying the Support Vector Machine Optimization Theory (SVMOT), the major characteristics of the defect are extracted. The work done in the project will provide theoretical basis and technological support for the optical film and the semiconducting material preparation and the nondestructive examination as well as the optical performance design of the nanometer structure.

  巩蕾,博士,教授。陕西光学学会会员,陕西物理学会会员。2011年毕业于西安电子科技大学,获理学博士学位。2011年至今,西安工业大学教师,主要研究方向为激光与物质相互作用、光学微结构与复杂目标光散射特性等。担任国家自然科学基金、陕西省自然科学基金、江西省自然科学基金函评专家,国际高水平学术期刊Journal of Quantitative Spectroscopy and Radiative Transfer 、Applied Optics 、Infrared Physics and Technology 等期刊审稿人。先后获2018年陕西省科学技术奖二等奖1项(1/7),2016年陕西省高等学校科学技术奖一等奖1项(1/7),2017年西安工业大学一等奖1项(1/7),2016年西安市科学技术三等奖1项(1/7)。主持国家级及省厅局级纵向课题7 项,其中国家自然科学基金青年基金1项,陕西省自然科学基金面上基金2项,陕西省自然科学基金青年基金1项,陕西省教育厅重点基金项目1项,陕西省教育厅自然科学专项资助项目1项,陕西省重点实验室开放基金2项;作为主要技术骨干参与国家“973”项目1 项,国防预研项目2 项,总装重点实验室基金1 项。先后在国内外学术刊物独立或合著发表论文40篇,其中EI/SCI检索29篇,专利3件。