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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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相关实验视频

Updated: Sep 13, 2025

Fluorescence Lifetime Macro Imager for Biomedical Applications
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Fluorescence Lifetime Macro Imager for Biomedical Applications

Published on: April 7, 2023

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低光摄像头Mega-FPS低光摄像头

Bowen Li, Lukas Palm, Marius Jürgensen

    Optics express
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    概括
    此摘要是机器生成的。

    研究人员开发了用于超快,单光子敏感视频的交织快速动力学成像. 这种技术使用标准的EMCCD摄像头实现高速率,最高可达3.33Mfps,从而实现了新的科学发现.

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    相关实验视频

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    Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
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    科学领域:

    • 科学成像科学成像技术
    • 光学物理学 光学物理学
    • 光子学是指光子学的使用方法.

    背景情况:

    • 高率和高量子效率的成像在各种科学领域都至关重要.
    • 现有的摄像机往往会妥协一个要求来实现另一个要求.
    • 持续需要在速度和灵敏度方面表现出色的成像系统.

    研究的目的:

    • 介绍一种新的成像技术,即交错的快速动力学成像.
    • 为了能够以极高的率 (高达3.33Mfps) 进行爆发式视频采集.
    • 用商业相机实现单光子灵敏度.

    主要方法:

    • 使用与商用电子乘积电荷合装置 (EMCCD) 摄像机交错的快速动力学成像.
    • 整合一个倾斜的镜头阵列,以创建与传感器行对齐的曝光像素网格.
    • 采用未曝光的像素作为现场存储记录器,以快速捕捉.

    主要成果:

    • 在高达3.33Mfps的率实现了爆发式视频采集.
    • 对于高达1.62MHz的强度调制频率保持了50%的对比度.
    • 成功捕获了11x15像素分辨率的动态图案的2D视频,每2微秒重复一次.

    结论:

    • 交错的快速动力学成像为具有单光子灵敏度的超快速成像提供了一种可行的方法.
    • 该技术与现有的商用EMCCD摄像机兼容.
    • 潜在的应用包括快速光成像和光子相关性测量.