相关实验视频

Updated: Sep 11, 2025

Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts
10:33

Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts

Published on: March 8, 2017

8.4K

基于宽带间隙光导体 (SiC:V) 的光学定位灯,用于高流动性操作

Bikramjit Chatterjee, Soroush Ghandiparsi, Miranda S Gottlieb

    Applied optics
    |August 12, 2025
    PubMed
    概括

    新的光学可定位光使用碳化 (SiC) 光导体,比氧化 (BSO) 设备提供更高的激光损伤值. 这些基于SiC的门在苛刻的应用中实现了90%以上的传输.

    更多相关视频

    Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs10:06

    Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs

    Published on: July 2, 2020

    6.9K
    Open Source High Content Analysis Utilizing Automated Fluorescence Lifetime Imaging Microscopy09:30

    Open Source High Content Analysis Utilizing Automated Fluorescence Lifetime Imaging Microscopy

    Published on: January 18, 2017

    12.1K

    相关概念视频

    Photoluminescence: Applications01:14

    Photoluminescence: Applications

    Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
    485
    Fluorescence and Phosphorescence: Instrumentation01:25

    Fluorescence and Phosphorescence: Instrumentation

    Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
    739
    Photoelectric Effect02:26

    Photoelectric Effect

    When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
    31.0K
    Photoluminescence: Fluorescence and Phosphorescence01:23

    Photoluminescence: Fluorescence and Phosphorescence

    Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
    A pair of electrons in a...
    2.3K