Appropriate combinations of laser beams can be used to trap and manipulate small particles with optical tweezers as well as to induce significant optical binding forces between particles. These ...

Toys and novelty items sometimes require random light displays to create a desired visual effect. However, creating a battery-powered random light display that consumes minimal power is a significant ...

Researchers have developed a method to improve the resolution of a conventional wide-field optical microscope. Scattered light usually reduces the resolution of conventional optical microscopes. The ...

A clever approach has been used to imprint a phase pattern on a laser beam. The pattern is not only random at each point, but also depends on information stored elsewhere in the pattern. The behaviour ...