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题名:
Large scale manipulation of the dark spot by phase modulation of azimuthally polarized light
作者: Chen, Weiguo; Wang, Jiong; Zhao, Zeyu; Wang, Changtao; Wang, YanQin; Yao, Na; Luo, Xiangang
刊名: OPTICS COMMUNICATIONS
出版日期: 2015-08-15
卷号: 349, 页码:125-131
关键词: Binary phase plate ; Azimuthally polarized light ; Size-tunable dark spot
文章类型: Article
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-pi phase plate, an ultra small dark spot regardless of side-lobe intensity is generated with main-lobe peak to peak distance shrunk to 0.24 lambda, 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. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: DIFFRACTIVE SUPERRESOLUTION ELEMENTS ; DOUGHNUT FOCAL SPOT ; STED MICROSCOPY ; STIMULATED-EMISSION ; BEAM ; FIELD ; RESOLUTION ; GENERATION ; SYSTEM ; LIMIT
收录类别: SCI
语种: 英语
WOS记录号: WOS:000357551900021
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3227
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China

Recommended Citation:
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.
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