It has been decades for laser pointer to control spin to produce light, but the orbital angular momentum produced in lasers is not so simple. The optical orbital angular momentum is created by twisting the phase of light into a spiral shape, forming a spiral shape. Because the closer to the center of the beam, the distortion…
Day: March 22, 2021
Scientists realize a twisted laser pointer beam
Researchers at the University of Witwatersrand used the geometric phase of a laser pointer to achieve for the first time a method of changing the orbital angular momentum of a laser beam. “Nature Photonics” NaturePhotonics magazine published the research results of this new type of laser discovered by researchers in South Africa and Italy, which can produce…
Researchers have developed the first practical laser pointer on silicon substrate
Researchers from the UK, including researchers from Cardiff University, have developed the first practical laser pointer formed on a silicon substrate. It is expected that this technological breakthrough will bring about ultra-high-speed communication between computer chips and electronic systems, covering areas such as communications, medical treatment, and energy production. With the increase in applications, users have higher…