Engineering the on-axis intensity of Bessel beam by a feedback tuning loop | |
Li, Runze1,2,3; Yu, Xianghua1; Yang, Yanlong1; Peng, Tong1,3; Yao, Baoli1; Zhang, Chunmin2; Ye, Tong4; Yao, Baoli (yaobl@opt.ac.cn) | |
2018 | |
会议名称 | Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXV 2018 |
会议录名称 | Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXV |
卷号 | 10499 |
会议日期 | 2018-01-29 |
会议地点 | San Francisco, CA, United states |
出版者 | SPIE |
产权排序 | 1 |
摘要 | The Bessel beam belongs to a typical class of non-diffractive optical fields that are characterized by their invariant focal profiles along the propagation direction. However, ideal Bessel beams only rigorously exist in theory; Bessel beams generated in the lab are quasi-Bessel beams with finite focal extensions and varying intensity profiles along the propagation axis. The ability to engineer the on-axis intensity profile to the desired shape is essential for many applications. Here we demonstrate an iterative optimization-based approach to engineering the on-axis intensity of Bessel beams. The genetic algorithm is used to demonstrate this approach. Starting with a traditional axicon phase mask, in the design process, the computed on-axis beam profile is fed into a feedback tuning loop of an iterative optimization process, which searches for an optimal radial phase distribution that can generate a generalized Bessel beam with the desired onaxis intensity profile. The experimental implementation involves a fine-tuning process that adjusts the originally targeted profile so that the optimization process can optimize the phase mask to yield an improved on-axis profile. Our proposed method has been demonstrated in engineering several zeroth-order Bessel beams with customized on-axis profiles. High accuracy and high energy throughput merit its use in many applications. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
作者部门 | 瞬态光学技术国家重点实验室 |
DOI | 10.1117/12.2290358 |
收录类别 | EI |
ISBN号 | 9781510614833 |
语种 | 英语 |
ISSN号 | 16057422 |
EI入藏号 | 20181605022292 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/30061 |
专题 | 瞬态光学研究室 |
通讯作者 | Yao, Baoli (yaobl@opt.ac.cn) |
作者单位 | 1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China 2.School of Science, Xi'An Jiaotong University, Xi'an; 710049, China 3.University of Chinese Academy of Sciences, Beijing; 100049, China 4.Department of Bioengineering, Clemson University, Clemson-MUSC Bioengineering Program, Charleston; SC; 29425, United States |
推荐引用方式 GB/T 7714 | Li, Runze,Yu, Xianghua,Yang, Yanlong,et al. Engineering the on-axis intensity of Bessel beam by a feedback tuning loop[C]:SPIE,2018. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Engineering the on-a(950KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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