Determining the Charge of Vortex Beams by Focused Intensity After Polarization Modulated

Xuebing Dai; Yanqiu Li; Lihui Liu; Ke Liu; Meng Zheng

doi:10.1109/LPT.2018.2797986

Determining the Charge of Vortex Beams by Focused Intensity After Polarization Modulated

Xuebing Dai, Yanqiu Li^*, Lihui Liu, Ke Liu, Meng Zheng

^*此作品的通讯作者

光电学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

Optical vortex beams (VB) carrying orbital angular momentum is of great importance in many fields. In this letter, combining a polarization modulation system and high NA lens, we propose a new method for detecting the topological charge (TC) value of VB. According to the focal field intensity distribution of VB after polarization modulation, we explore the correlation between the intensity and the TC of VB. The results reveal that the tightly focusing intensity represents a smallest solid spot when the TC value of VB equals the polarization azimuthal index. Based on this property, we can determine arbitrary states of VB by the focal intensity, especially in the case of higher charge.

源语言	英语
页（从-至）	487-490
页数	4
期刊	IEEE Photonics Technology Letters
卷	30
期	5
DOI	https://doi.org/10.1109/LPT.2018.2797986
出版状态	已出版 - 1 3月 2018

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title = "Determining the Charge of Vortex Beams by Focused Intensity After Polarization Modulated",

abstract = "Optical vortex beams (VB) carrying orbital angular momentum is of great importance in many fields. In this letter, combining a polarization modulation system and high NA lens, we propose a new method for detecting the topological charge (TC) value of VB. According to the focal field intensity distribution of VB after polarization modulation, we explore the correlation between the intensity and the TC of VB. The results reveal that the tightly focusing intensity represents a smallest solid spot when the TC value of VB equals the polarization azimuthal index. Based on this property, we can determine arbitrary states of VB by the focal intensity, especially in the case of higher charge.",

keywords = "Vortex beams, diffraction, focusing, polarization",

author = "Xuebing Dai and Yanqiu Li and Lihui Liu and Ke Liu and Meng Zheng",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2018",

month = mar,

day = "1",

doi = "10.1109/LPT.2018.2797986",

language = "English",

volume = "30",

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journal = "IEEE Photonics Technology Letters",

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TY - JOUR

T1 - Determining the Charge of Vortex Beams by Focused Intensity After Polarization Modulated

AU - Dai, Xuebing

AU - Li, Yanqiu

AU - Liu, Lihui

AU - Liu, Ke

AU - Zheng, Meng

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Optical vortex beams (VB) carrying orbital angular momentum is of great importance in many fields. In this letter, combining a polarization modulation system and high NA lens, we propose a new method for detecting the topological charge (TC) value of VB. According to the focal field intensity distribution of VB after polarization modulation, we explore the correlation between the intensity and the TC of VB. The results reveal that the tightly focusing intensity represents a smallest solid spot when the TC value of VB equals the polarization azimuthal index. Based on this property, we can determine arbitrary states of VB by the focal intensity, especially in the case of higher charge.

AB - Optical vortex beams (VB) carrying orbital angular momentum is of great importance in many fields. In this letter, combining a polarization modulation system and high NA lens, we propose a new method for detecting the topological charge (TC) value of VB. According to the focal field intensity distribution of VB after polarization modulation, we explore the correlation between the intensity and the TC of VB. The results reveal that the tightly focusing intensity represents a smallest solid spot when the TC value of VB equals the polarization azimuthal index. Based on this property, we can determine arbitrary states of VB by the focal intensity, especially in the case of higher charge.

KW - Vortex beams

KW - diffraction

KW - focusing

KW - polarization

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U2 - 10.1109/LPT.2018.2797986

DO - 10.1109/LPT.2018.2797986

M3 - Article

AN - SCOPUS:85040973883

SN - 1041-1135

VL - 30

SP - 487

EP - 490

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 5

ER -

Determining the Charge of Vortex Beams by Focused Intensity After Polarization Modulated

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