Reflecting telescopes have two mirrors: a large ... small horizontal spikes are from the remaining strut. You can get many types of diffraction spikes, depending on the shape of your mirror (or ...

The plasma electrons collectively respond to the resulting laser near-field diffraction pattern ... propagating through a comparable fixed circular aperture of 0.75 μm radius (that is, no ...

2023.230039 discusses diffraction-limited visible imaging for large aperture telescopes. The deformable mirror used in adaptive optics can change its surface to instantly correct the static ...

Captured here is a laser diffraction pattern, visible as a series of concentric circles with a bright central area. This pattern is a result of light waves spreading out and overlapping after passing ...