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相关概念视频

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...
Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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 developed.

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Updated: Jul 14, 2026

Measuring Diffusion Coefficients via Two-photon Fluorescence Recovery After Photobleaching
07:00

Measuring Diffusion Coefficients via Two-photon Fluorescence Recovery After Photobleaching

Published on: February 26, 2010

最近在可调节激光器的发展,用于光谱学.

C R Pidgeon, M J Colles

    Nature
    |May 31, 1979
    PubMed
    概括

    审查了可调节激光器的最新进展,重点关注它们在光谱学中的重要应用. 这项技术可以在各种科学领域进行精确的光谱测量和分析.

    科学领域:

    • 物理 物理学 物理
    • 物理化学 物理化学
    • 频谱学是一种光谱学.

    背景情况:

    • 可调节激光器代表了激光技术的重大进步.
    • 它们在特定,可调节的波长下发射光的能力对于许多科学应用至关重要.

    研究的目的:

    • 审查可调节激光技术的最新发展.
    • 突出这些激光器在光谱学领域的特殊应用.

    主要方法:

    • 关于可调节激光系统的最新进展的文献综述.
    • 分析展示可调节激光在光谱学中的应用的案例研究.

    主要成果:

    • 在激光调整性,效率和波长范围方面取得了重大进展.
    • 可调节激光器对于高分辨率光谱,化学分析和基础研究越来越重要.

    结论:

    • 可调节激光器的持续创新正在扩大它们在光谱学中的用途.
    • 这些进步有助于进行更复杂,更精确的光谱研究.

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