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相关概念视频

IR Spectrometers01:25

IR Spectrometers

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There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
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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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Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

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Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for...
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相关实验视频

Updated: Jun 7, 2025

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
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使用极端紫外线干涉测量的快速光谱成像.

Hannah C Strauch, Fengling Zhang, Stefan Mathias

    Optics express
    |November 14, 2024
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    概括
    此摘要是机器生成的。

    这项研究引入了一种结合富里埃变换光谱学和全息学的新型干扰测量方法. 该技术使用来自高波生成源的极端紫外线脉冲快速获取全光谱微观数据.

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    High-definition Fourier Transform Infrared FT-IR Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology
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    相关实验视频

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    Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
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    科学领域:

    • 超快速科学 超快速科学
    • 一致的成像成像系统
    • 频谱学是一种光谱学.

    背景情况:

    • 高波生成 (HHG) 的极紫外 (XUV) 脉冲对于时间分辨率光谱和连贯衍射成像至关重要.
    • 将光谱和显微镜与HHG集成是具有挑战性的,因为在分离光谱和显微信息方面存在困难.

    研究的目的:

    • 开发一种使用HHG结合光谱和显微镜的方法.
    • 为了克服分离光谱和显微信息的挑战.

    主要方法:

    • 一种结合富里埃变换光谱法 (FTS) 和富里埃变换全息法 (FTH) 的干扰度计方法.
    • 使用一对HHG源生成相锁脉冲.
    • 通过利用高声波的数量和先前的样本知识,尽量减少干扰度测量.

    主要成果:

    • 与传统的FTS相比,实现了全谱显微数据采集速度的数量级上升.
    • 启用了高分辨率的计算成像.
    • 展示了一种分离光谱和显微信息的方法.

    结论:

    • 介绍的干扰测量技术为光谱显微镜成像提供了显著的进步.
    • 这种方法加速了数据采集,并提高了基于HHG的实验的成像分辨率.