| Title | 空心高斯光束聚焦特性研究 |
| Authors | Wu Guohua 吴国华 Guo Hong 郭弘 |
| Affiliation | School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 北京邮电大学电子工程学院,北京100876 School of Electronics Engineering and Computer Science,Peking University, Beijing 100871, China 北京大学信息科学技术学院,北京100871 |
| Keywords | 空心高斯光束 菲涅耳衍射积分公式 聚焦特性 辐照分布 |
| Issue Date | 2009 |
| Citation | 中国电子学会第十五届青年学术年会论文集中国电子学会.. |
| Abstract | On the basis of Fresnel diffraction integral formulation,an analytical intensity distribution of hollow Gaussian beam (HGB) passing through an apertureless lens is obtained.The three-dimensional intensity in the focal region is studied in detail.The irradiance distribution inthe focus plane approaches Gauss shape with some lobes at two sides,which differs from its initialdoughnut shape.The focal shift of HGB depending on various parameters is investigated. |
| URI | http://hdl.handle.net/20.500.11897/283196 |
| Appears in Collections: | 信息科学技术学院 |
