Laser beam induced nanoscale spot through nonlinear "thick" samples: A multi-layer thin lens self-focusing model | |
Wei, Jingsong; Yan, Hui | |
刊名 | j. appl. phys.
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2014 | |
卷号 | 116期号:6页码:63107 |
关键词 | SCANNING OPTICAL MICROSCOPE DIFFRACTION LIMIT FILM |
通讯作者 | wei, js (reprint author), chinese acad sci, shanghai inst opt & fine mech, shanghai 201800, peoples r china. |
英文摘要 | self-focusing is a well-researched phenomenon. nanoscale spots can be achieved through self-focusing, which is an alternative method for achieving high-density data storage, high-resolution light imaging, and maskless nanolithography. several research groups have observed that self-focusing spots can be reduced to nanoscale levels via incident laser power manipulation. self-focusing spots can be analyzed by solving the nonlinear schrodinger equation and the finite difference time domain method. however, both procedures are complex and time-consuming. in the present work, a multilayer thin-lens self-focusing model that considers diffraction effects and changes of refractive index along the radial and film thickness directions is proposed to analyze the self-focusing behavior and traveling process of light beams intuitively. the self-focusing behaviors of as2s3 are simulated, and results show that a nanoscale self-focusing spot with a radius of about 0. 12 mu m can be formed at the bottom of nonlinear sample when the incident laser power exceeds 4.25 mw. our findings are basically consistent with experimental reports and provide a good method for analyzing and understanding the self-focusing process. an appropriate application schematic design is also provided. (c) 2014 aip publishing llc. |
收录类别 | SCI |
语种 | 英语 |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.siom.ac.cn/handle/181231/13443] ![]() |
专题 | 上海光学精密机械研究所_高密度光存储技术实验室 |
作者单位 | 1.[Wei, Jingsong 2.Yan, Hui] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China 3.[Yan, Hui] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Jingsong,Yan, Hui. Laser beam induced nanoscale spot through nonlinear "thick" samples: A multi-layer thin lens self-focusing model[J]. j. appl. phys.,2014,116(6):63107. |
APA | Wei, Jingsong,&Yan, Hui.(2014).Laser beam induced nanoscale spot through nonlinear "thick" samples: A multi-layer thin lens self-focusing model.j. appl. phys.,116(6),63107. |
MLA | Wei, Jingsong,et al."Laser beam induced nanoscale spot through nonlinear "thick" samples: A multi-layer thin lens self-focusing model".j. appl. phys. 116.6(2014):63107. |
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