A pattern of distorted lines is visible as a reflection in this close-up view of a human eye. By observing the deformation of illumination patterns reflected off the eye's surface, researchers in ...

Diffraction spikes, visible in high-power astronomical images, are an intrinsic optical phenomenon in reflecting telescopes, primarily caused by the diffraction and subsequent interference of incoming ...

Fast, precise and stable nanopositioning and metrology are critical for the development of nanoscale structures, particularly in the semiconductor industry. Present measurement techniques that offer ...