Science Lab

Learn. Share. Contribute. The knowledge portal of Leica Microsystems. Find scientific research and teaching material on the subject of microscopy. The portal supports beginners, experienced practitioners and scientists alike in their everyday work and experiments. Explore interactive tutorials and application notes, discover the basics of microscopy as well as high-end technologies. Become part of the Science Lab community and share your expertise.

Spherulitic crystals of hippuric acid, which were imaged with a Leica microscope using crossed polarizers, showing so-called Maltese crosses.

A Guide to Polarized Light Microscopy

Polarized light microscopy (POL) enhances contrast in birefringent materials and is used in geology, biology, and materials science to study minerals, crystals, fibers, and plant cell walls.

Fluorescence microscope image of a life-science specimen

An Introduction to Fluorescence

This article gives an introduction to fluorescence and photoluminescence, which includes phosphorescence, explains the basic theory behind them, and how fluorescence is used for microscopy.

A Guide to Darkfield Microscopes

A darkfield microscope offers a way to view the structures of many types of biological specimens in greater contrast without the need of stains.

A Guide to Phase Contrast

A phase contrast light microscope offers a way to view the structures of many types of biological specimens in greater contrast without the need of stains.