.png){kind=icon}
返回
Optimization-free approach or generating sub-diffraction quasi-non-diffracting beams
.png){kind=icon}
OA
AI
DOI：10.1364/OE.26.016585.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Sub-diffraction quasi-non-diffracting beams with sub-wavelength transverse size are attractive for applications such as optical nano-manipulation, optical nano-fabrication, optical high-density storage, and optical super-resolution microscopy. In this paper, we proposed an optimization-free design approach and demonstrated the possibility of generating sub-diffraction quasi-non-diffracting beams with sub-wavelength size for different polarizations by a binary-phase Fresnel planar lens. More importantly, the optimization-free method significantly simplifies the design procedure and the generation of sub-diffracting quasi-non-diffracting beams. Utilizing the concept of normalized angular spectrum compression, for wavelength lambda(0) = 632.8 nm, a binary-phase Fresnel planar lens was designed and fabricated. The experimental results show that the sub-diffraction transverse size and the non-diffracting propagation distances are 0.40 lambda(0)-0.54 lambda(0) and 90 lambda(0), 0.43 lambda(0)-0.54 lambda(0) and 73 lambda(0), and 0.34 lambda(0)-0.41 lambda(0) and 80 lambda(0) for the generated quasi-non-diffracting beams with circular, longitudinal, and azimuthal polarizations, respectively. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keyword:
LONGITUDINALLY POLARIZED-LIGHT
SUPER-OSCILLATORY LENS
FRESNEL ZONE-PLATE
LONG FOCAL LENGTH
BESSEL BEAMS
OPTICAL NEEDLE
PHASE
BINARY
CREATION
SPOT
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
机构
引用论文
分享收藏分享收藏Sharper focal spot generated by 4π tight focusing of higher-order Laguerre-Gaussian radially polarized beam.png)
OPTICS LETTERS
OPTICS LETTERSIF3.3
PREAI
分享收藏分享收藏Optical properties of high-performance liquid crystal–xerogel microcomposite electro-optical film
PREAI
分享收藏分享收藏
查看更多内容