Large scale manipulation of the dark spot by phase modulation of azimuthally polarized light
文献类型：期刊论文
| 作者 | Chen, Weiguo; Wang, Jiong; Zhao, Zeyu; Wang, Changtao; Wang, Yanqin; Yao, Na; Luo, Xiangang |
| 刊名 | Optics Communications
 |
| 出版日期 | 2015 |
| 卷号 | 349页码:125-131 |
| ISSN号 | 0030-4018 |
| 通讯作者 | Luo, Xiangang |
| 中文摘要 | A new method is proposed to focus azimuthally polarized beam into an ultra-small or ultra-big dark spot under high numerical aperture lens system. Manipulated by proper designed binary 0-π phase plate, an ultra small dark spot regardless of side-lobe intensity is generated with main-lobe peak to peak distance shrunk to 0.24λ, which is 46% of the case without phase plate. For potential applications, shrinking the dark spot and suppressing the side-lobe intensity are analyzed, and several cases of squeezed dark spots with different levels of side-lobe intensities are presented. Additionally, using a two-zone phase plate to enlarge the dark spot is investigated in this paper, and an enlarged dark spot is readily acquired with the main-lobe peak to peak distance in a range of 100%-200%. The advantages of this method are its large scale manipulation of the dark spot size and its high performance in suppressing side-lobe intensity, which is of great worth in enhancing the performance of many systems such as optical tweezers and stimulated emission depletion (STED) microscope. © 2015 Elsevier B.V. |
| 英文摘要 | A new method is proposed to focus azimuthally polarized beam into an ultra-small or ultra-big dark spot under high numerical aperture lens system. Manipulated by proper designed binary 0-π phase plate, an ultra small dark spot regardless of side-lobe intensity is generated with main-lobe peak to peak distance shrunk to 0.24λ, which is 46% of the case without phase plate. For potential applications, shrinking the dark spot and suppressing the side-lobe intensity are analyzed, and several cases of squeezed dark spots with different levels of side-lobe intensities are presented. Additionally, using a two-zone phase plate to enlarge the dark spot is investigated in this paper, and an enlarged dark spot is readily acquired with the main-lobe peak to peak distance in a range of 100%-200%. The advantages of this method are its large scale manipulation of the dark spot size and its high performance in suppressing side-lobe intensity, which is of great worth in enhancing the performance of many systems such as optical tweezers and stimulated emission depletion (STED) microscope. © 2015 Elsevier B.V. |
| 学科主题 | Light polarization - Numerical methods - Optical tweezers - Phase modulation - Stimulated emission |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000357551900021 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/6901]  |
| 专题 | 光电技术研究所_微细加工光学技术国家重点实验室（开放室） |
| 作者单位 | State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu, China |
| 推荐引用方式 GB/T 7714 | Chen, Weiguo,Wang, Jiong,Zhao, Zeyu,et al. Large scale manipulation of the dark spot by phase modulation of azimuthally polarized light[J]. Optics Communications,2015,349:125-131. |
| APA | Chen, Weiguo.,Wang, Jiong.,Zhao, Zeyu.,Wang, Changtao.,Wang, Yanqin.,...&Luo, Xiangang.(2015).Large scale manipulation of the dark spot by phase modulation of azimuthally polarized light.Optics Communications,349,125-131. |
| MLA | Chen, Weiguo,et al."Large scale manipulation of the dark spot by phase modulation of azimuthally polarized light".Optics Communications 349(2015):125-131. |
入库方式： OAI收割
来源：光电技术研究所
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