A laser beam is shone onto a ball bearing and a bright spot appears at the centre of the object’s shadow due to Fresnel diffraction. Place the laser on top of the lab jacks, making sure the laser is ...

The requirement for an object to be surrounded by empty space when imaged by coherent X-ray diffraction was once thought to be a fundamental limitation. A variant of coherent diffractive imaging ...

A laser beam is shone onto a variable rectangular aperture. The size of the hole determines the type of diffraction produces on the screen. Very small apertures produce Fraunhofer diffraction, and ...