Metasurface holograms (meta-holograms) are ultra-thin artificial surfaces designed to shape incident light and project it to extremely wide angles. Meta-holograms have opened up numerous possibilities ...

To burn or write in the air, the pen emits high-intensity laser pulses to create ionized gas or plasma. In turn, this emits energy in the form of light. The pulses are brief, just femtoseconds, and ...

A project at the Australian Research Council Centre of Excellence for Transformative Meta-Optical Systems (TMOS) has developed a device that might ultimately allow live holography to be used in field ...

Tailored profiles: The working principle of the new metalaser. The designed geometric phase profile is introduced to the metasurface by rotating the hole in each silicon nitride nanodisk. Then the ...

Once, holograms were just a scientific curiosity. But thanks to the rapid development of lasers, they have gradually moved centre stage, appearing on the security imagery for credit cards and bank ...

WEST LAFAYETTE, Ind. — Purdue University scientists developing a new imaging technology have created the world's first "visual fly-throughs" of a living tumor. The technique, which uses lasers, ...

July 28 (UPI) --Eduardo Kac has been trying for 37 years to realize his vision for an art project he began when he was just 24 years old -- sending one of his holographic poems, or holopoems as he ...

Researchers from Cambridge and Light Blue Optics, Ltd. have developed a prototype pocket-sized, battery-powered video projector — or at least the technology that should, in the mythical two to five ...

The spectrum of laser technologies available to hackers has gradually widened from basic gas lasers through CO2 tubes, diode lasers, and now fiber lasers. One of the newer entries is the MOPA laser, ...

Holograms are tricky to describe because science-fiction gives the name to any three-dimensional image. The science-fact versions are not as flashy, but they are still darn cool. Legitimate holograms ...