Test for echo: schematic diagram of an object to be imaged (blue blob) and illumination source (concentric circles) inside a randomly shaped cavity. The detector is represented by the two parallel ...

What is the Diffraction Limit? The diffraction limit is a fundamental barrier in optical microscopy that sets the minimum size of features that can be resolved using conventional light microscopes. It ...

Without light microscopy, our knowledge of 'little biology' would be severely impaired. The ability to observe migrating cells, examine the distribution of organelle populations or predict putative ...