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显微镜科学与教学知识中心

显微镜科学与教学知识中心

显微镜科学与教学知识中心

徕卡显微系统的知识库提供有关显微镜学科的科学研究和教学材料。内容旨在对显微镜初学者、有经验的显微镜操作实践者和使用显微镜的科学家在他们的日常工作和实验有所帮助。这里有探索交互式教程和应用笔记,你可以找到你需要的显微镜的基础知识以及前沿技术——快来加入徕卡显微知识社区,分享您的专业知识!
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From Light to Mind: Sensors and Measuring Techniques in Confocal Microscopy

This article outlines the most important sensors used in confocal microscopy. By confocal microscopy, we mean "True Confocal Scanning", i.e. the technique that illuminates and measures one single…

Video: The White Light Laser – How to Effectively Excite Multiple Fluorophores with a Single Light Source

The Leica White Light Laser produces a continuous spectral output between the wavelengths of 470 and 670 nm. It allows you to select 8 excitation lines from 3 trillion unique combinations for…
Schematic graph of the light path in a Spalt-Ultramikroskop.

Confocal and Light Sheet Imaging

Optical imaging instrumentation can magnify tiny objects, zoom in on distant stars and reveal details that are invisible to the naked eye. But it notoriously suffers from an annoying problem: the…
[Translate to chinese:] Acousto-optics, sketch

声光调制在全光谱型激光共聚焦显微镜系统的应用

荧光最显著的特征是照射光(激发光)和检测光(发射光)颜色之间的偏移,称为斯托克斯位移。因此,在荧光成像中,不仅要将激发光和发射光的相应波长过滤出来,还需要将激发光从发射光中分离。过去,通常用平面光学元件,包括灰色或彩色滤光片和反射镜进行滤光和分光。虽然有多种平面光学元件可供使用,但固定的规格和低切换效率使其在使用上具有局限性,并且采用不同角度或梯度的涂层作为激发光和发射光的调谐方法也被证实并不可行…

Nobel Prize 2013 in Physiology or Medicine for Discoveries of the Machinery Regulating Vesicle Traffic

On October 7th 2013, The Nobel Assembly at Karolinska Institutet has decided to award The Nobel Prize in Physiology or Medicine 2012 jointly to James E. Rothman, Randy W. Schekman and Thomas C. Südhof…

Handbook of Optical Filters for Fluorescence Microscopy

Fluorescence microscopy and other light-based applications require optical filters that have demanding spectral and physical characteristics. Often, these characteristics are application-specific and…
John B. Gurdon

Nobel Prize 2012 in Physiology or Medicine for Stem Cell Research

The Nobel Prize recognizes two scientists who discovered that mature, specialised cells can be reprogrammed to become immature cells capable of developing into all tissues of the body. Their findings…
Sub-Femtolitre volume_Fluorescence correlation spectroscopy (FCS)

Fluorescence Correlation Spectroscopy (FCS)

Fluorescence correlation spectroscopy (FCS) measures fluctuations of fluorescence intensity in a sub-femtolitre volume to detect such parameters as the diffusion time, number of molecules or dark…
White Light Laser: Lambda square scan

白激光

在生物医学应用中,共聚焦显微镜的完美光源它应该有足够的强度,可调谐的波长,以便同时激发一系列样品。此外,它应该成为荧光寿命实验的脉冲光源。这样的光源已经出现:白激光。它采用高能脉冲红外光纤激光器经过光子晶体光纤以产生连续光谱。通过声光调制滤片从该连续光谱中选择窄带激光。
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