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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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相关实验视频

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Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
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全固态全向快速扫描使用液晶光学相位阵列和圆镜.

Shuanglong Zhou, Jie Cao, Qun Hao

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    此摘要是机器生成的。

    本研究介绍了一种创新的全向扫描模型,使用液晶光学相控阵列 (LC-OPA) 和形镜. 该系统显著提高了视野,并减少了没有机械部件的光学相位阵列的扫描时间.

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 固态物理 固态物理
    • 材料科学 材料科学 材料科学

    背景情况:

    • 光学相位阵列 (OPA) 能够实现无机械的光束转向.
    • 目前的OPA在扫描视野 (FOV) 和扫描速度方面面临限制.
    • 解决这些局限性对于推进OPA申请至关重要.

    研究的目的:

    • 为OPAs开发一个全方位扫描模型.
    • 克服传统OPAs狭窄的FOV和漫长的扫描时间.
    • 为了提高性能,将液晶OPA与形镜相结合.

    主要方法:

    • 提出了一个全向扫描模型,结合了液晶光学相位阵列 (LC-OPA) 和形镜.
    • 使用LC-OPA生成环形光束.
    • 集成LC-OPA与一个被动的形镜子用于光束操纵.

    主要成果:

    • 实现了360°×2.1°的扫描视野 (FOV).
    • 显示的扫描误差小于0.04°.
    • 将扫描时间缩短到2D格子系统的1/4800,没有机械部件.

    结论:

    • 结合的LC-OPA和形镜子系统有效地实现了全向扫描.
    • 这种新的方法显著扩大了FOV并加速了扫描速度.
    • 该系统为未来的固态光束转向应用提供了一个有希望的解决方案.