Researchers generated stable vortex light in its lowest-energy state using liquid crystal traps and optical confinement.

Optical vortices—light beams carrying orbital angular momentum (OAM)—are characterized by helical wavefronts and phase ...

The science experimenters at TKOR design a handheld air vortex device capable of shooting visible smoke rings with force.

In a lab at Osaka University, physicist Yoshiki Nakata and his colleagues fired a pulsed laser through a stack of three ...

Fundamentally, a microscope comprises two subsystems: an illumination system to illuminate the sample and an imaging system that produces a magnified image of the light that has interacted with the ...

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

Every hunter needs a good binocular. But not every hunter needs a great one, and the difference between good and great seems to get slimmer every year. Having tested binoculars for going on a couple ...

Abstract: When vortex beams propagate in space, they inevitably encounter the influence of atmospheric turbulence. Usually, we collect images of vortex beam intensity transmitted through atmospheric ...

description A scoped formal argument: if consciousness is a nontrivial semantic property of computation, then no general Turing-machine detector can decide it from arbitrary encodings of programs, ...