... exception of light being bent by gravity. But scientists are now investigating how to make light beams into looped and knotted configurations. The possibility for these structured light beams arises ...
(PhysOrg.com) -- Researchers at the University of St Andrews have made a surprise discovery using light beams that can travel around corners.
... called near infrared spectroscopy, which is able to penetrate the skull with high-powered light beams to assess oxygen saturation, they measured the "regional cerebral oxygen concentration" (SrO2) in ...
... be deflected when the force is detected—i.e., when the cantilever moves—resulting in a variation in the light beam's intensity that can then be detected and recorded.
"LIGO is a huge multikilometer- ...
... standard techniques to cool ions with laser light and trap them with electromagnetic fields. But whereas ... parabolic (cone-shaped) mirror so that light beams could be focused directly on the ion. Under ...
... one to travel a different length of silicon nanowire, called a waveguide. As a result, the two light beams became out of phase with one another, creating a repulsive force with an intensity that can ...
... a slightly different form of teleportation, in which they teleport a quantum field, or an entire beam of light, from one location to another. This kind of "strong" teleportation is required for some ...
... creating cells that can be trained to follow a light beam or stop on command like microscopic robots. ... looked to plants for proteins that might serve as the light sensor. Plants are known to rely upon ...
... to promising better detection of faint objects and improved amplification and positioning of light beams, the researchers' technique for producing quantum images—unprecedented in its simplicity, ...
Using a convenient and flexible method for creating twin light beams, researchers from the National Institute of Standards and Technology (NIST) and the University of Maryland (UM) have produced “ ...
... the tuning fork into resonance."
The amplitude of this vibration is proportional to the intensity of the scattered light beam falling on the tuning fork, which because of the nature of quartz creates ...
... the Proceedings of the National Academy of Sciences.
Last fall, Lang and others demonstrated that light beams could be used to pick up and move individual cells around the surface of a microchip.
...
Researchers have developed a novel technique to measure the strength of the bonds between two protein molecules important in cell machinery: gently tugging them apart with light beams.
... mile up is no easy task. They have used stationary light beams, radar-mounted tracking spot ... directs microwaves in a narrow cone – a "pencil-beam" that can be pointed at virtually any target within ...
... and right middle ear. The changing state of the Eustachian tubes was more readily observed by directing a light beam at the mouth from under the frog's chin. When the Eustachian tubes were open, the ...
