This 3D-printed confocal laser scanning microscope is a good example of an instrument for measuring really small stuff. As [Zachary Tong] points out, confocal scanning microscopy uses a clever ...

Laser scanning technology for building security applications utilises the time-of-flight method, in which a sensor emits a pulse that is then reflected by a target, if present. The time required for ...

The basic scheme here is known as confocal laser scanning fluorescence microscopy, where a laser at one wavelength excites fluorescent tags bound to structures in a sample. Light emitted by the ...