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首页> 外文期刊>Optics Letters >Liquid crystal bifocal lens with adjustable intensities through polarization controls
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Liquid crystal bifocal lens with adjustable intensities through polarization controls

机译：液晶双方透镜，具有可调节强度的偏振控制

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摘要

In this Letter, transverse and longitudinal liquid crystal bifocal lenses (LCBLs) are proposed to continuously control the relative intensity of two foci through a simple polarization control. The modulation of a LCBL comes from the geometric phase control and is designed through the principle of holography, where the object wave is a light field from two foci respectively formed by the left-circular polarized (LCP) and right-circular polarized (RCP) light, and the reference wave is the incident plane wave. Constructed millimeter-scale LCBLs are verified experimentally, and the foci are precisely formed at the preset plane. Besides, the relative intensity can be easily controlled with different weights of LCP and RCP light. The proposed strategy overcomes the shortcomings of previous bifocal lenses, such as a complex design method, a long optimization time, and an unchangeable relative intensity, and it is expected to find potential applications in parallel optical processing and optical interconnections. (C) 2020 Optical Society of America
机译：在该字母中，提出横向和纵向液晶双方透镜（LCBL）通过简单的偏振控制连续地控制两个焦点的相对强度。 LCBL的调制来自几何相位控制，并且通过全息术原理设计，其中物体波是由左圆偏振（LCP）和右圆偏振（RCP）形成的来自两个焦点的光场光线，参考波是入射的平面波。实验验证构造的毫米级LCBL，并且精确地在预设平面上形成焦点。此外，通过不同的LCP和RCP光，可以容易地控制相对强度。该策略克服了先前的双焦透镜的缺点，例如复杂的设计方法，长优化时间和不可改变的相对强度，并且预期在并行光学处理和光学互连中找到潜在的应用。 （c）2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第20期|共4页
  • 作者

    Zhou Yingjie; Yuan Yide; Zeng Tibin; Wang Xiangru; Tang Dongliang; Fan Fan; Wen Shuangchun;

  • 作者单位

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

    Univ Elect Sci &

    Technol China Sch Optoelect Informat Chengdu 610054 Peoples R China;

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

    Hunan Univ Minist Educ Key Lab Micro Nano Optoelect Devices Changsha 410082 Hunan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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