Sentences with phrase «which laser beams»

To be clear, at this point they achieved a release of energy greater than that which the laser beams put into the fuel capsule.

For example, he showed how it was possible to greatly increase the effective length of the interferometer arms by creating what is known as a Fabry - Pérot cavity, in which the laser beams bounce back and forth many times between mirrors at either ends of the arms before their recombination at the beam splitter.

They believe that the experiments, in which laser beams power a fusion reaction, could reveal secrets of the hydrogen bomb.

They are able to image the cloud to see which laser beams have trapped an atom, and can switch off certain beams to discard those traps without an atom.

By looking at their images, the researchers were able to discern which laser beams, or tweezers, were holding atoms and which were not.

The device makes use of a phenomenon called electromagnetically induced transparency, in which a laser beam can render opaque clouds of atoms temporarily transparent to a narrow wavelength of light.

The Trinity scientists are funded by SFI to improve the method by which a laser beam, similar to that used for eye surgery, removes a thin film from the surface of the crystals.

Not exact matches

Innovations also abound in selective laser sintering and stereo lithography, both of which operate much like a laser printer, with high - powered beams of light carving and hardening shapes from a bed of resin.

When a section of this same plate is illuminated by a laser beam (as shown in Fig. 4), light waves come out which are similar to those coming from the original object.

In the spacecraft's first record - breaking accomplishment, reported June 16 in Science, the satellite used onboard lasers to beam down pairs of entangled particles, which have eerily linked properties, to two cities in China, where the particles were captured by telescopes (SN: 8/5/17, p. 14).

China's Micius satellite, which launched in 2016, uses lasers to beam photons, or light particles, to ground stations on Earth.

The laser shines on a sample of the material under study; light scatters off the sample and creates a two - dimensional pattern of interference between the laser beam and the scattered light — a hologram — which a video camera records.

To kick - start the reaction, the plan is to convert energy from high - power laser beams into heat and then X-rays, which will compress a pellet of deuterium and tritium to force the nuclei together.

Without meaning to, Esslinger's team created what amounts to an atomic analogue of this using optical trapping, in which criss - crossing laser beams are used to corral ultracold atoms.

For this purpose, a terrestrial laser scanner (TLS) is used, which scans its surroundings with a laser beam within a radius of several hundred metres.

They use a near - infrared laser beam, which can penetrate deep — in this context, deep means a centimeter or two — into the tissue, where a nanoparticle turns the near - infrared light into blue light, and that directs the activity of genetically engineered immune cells.

«The transistor laser has those plus a third output — a coherent photon beam,» which can be transmitted by fiber - optic line for speed - of - light processing.

The new research has shown the even transparent plates made of quartz glass can significantly alter the laser filaments, an effect that leads to an improvement in the precision of material processing or a correction to the distance at which the power of the laser beam is delivered.

These impart random noise to laser beams in the device, which converts it into numbers (Nature Photonics, DOI: 10.1038 / nphoton.2010.197).

At each of the facilities, a laser shoots a 35 - watt infrared beam through a Faraday isolator, which directs and polarizes the light.

The ANU team not only succeeded in building the experiment, which seemed nearly impossible when it was proposed in 1978, but reversed Wheeler's original concept of light beams being bounced by mirrors, and instead used atoms scattered by laser light.

The laser beams focus on the tiny gold cylinder, which contains a target the size of a BB.

To do so they made the atoms in the sample vibrate by shining a laser beam through a small hole in the photodetector, which was placed right on top of the sample.

Kept at minus 456 degrees Fahrenheit, a temperature at which niobium conducts electricity without losses, these cavities will power a highly energetic electron beam that will create up to 1 million X-ray flashes per second — more than any other current or planned X-ray laser.

The DVD player spins the disc, and as it rotates, the spiral is scanned by a laser beam, which acts much like the needle in an old record player.

One candidate for such a computer is a so - called optical lattice, in which ultracold atoms are coaxed by strategically placed laser beams into a grid arrangement,...

The researchers focused the smaller laser beams through the cloud of ultracold atoms and found that each beam's focus — the point at which the beam's intensity was highest — attracted a single atom, essentially picking it out from the cloud and holding it in place.

The global maps were created from data obtained by an instrument called the Mars Orbiter Laser Altimeter (MOLA), which bounces an infrared laser beam off the surface and calculates the distance from the spacecraft by measuring the time it takes to detect the reflected pLaser Altimeter (MOLA), which bounces an infrared laser beam off the surface and calculates the distance from the spacecraft by measuring the time it takes to detect the reflected plaser beam off the surface and calculates the distance from the spacecraft by measuring the time it takes to detect the reflected pulse.

They then directed a second laser beam through an instrument that splits the laser beam into many smaller beams, the number and angle of which depend on the radio frequency applied to the deflector.

Whereas a normal laser traps light with mirrors that reflect the beam, a fine powder can trap light within its dancing particles, which then scatter the photons.

Moving the nanoparticles in the study required a couple of watts of optical power — the equivalent of thousands of heat - producing laser pointers — which means a tractor beam big enough to lasso a spaceship is still (light) years away.

Government departments and safety bodies are passing the buck on responsibility for checking the safety of a device which beams a laser directly onto the retina to give the illusion of looking at a distant screen.

They then exposed the evolving quantum system to a third laser beam to try and excite the atoms into what is known as a Rydberg state — a state in which one of an atom's electrons is excited to a very high energy compared with the rest of the atom's electrons.

They directed a laser beam through a lens and onto a mirror, which reflected back a second beam.

To manipulate the foreign DNA, the scientists used optical tweezers, which essentially tweaks a laser beam whose electromagnetic field can grab hold of and transport a plasmid - coated particle.

When you shine natural light on the developed film from the same direction as the original laser beams, all those mirrors reflect light at precisely the same angles at which it originally bounced off the object.

BIC lasers can also be made to emit beams with specially engineered shapes (spiral, donut or bell curve)-- called vector beams — which could enable increasingly powerful computers and optical communication systems that can carry up to 10 times more information than existing ones.

But few of us have encountered the laser's cold war — era relative, the maser, which produces concentrated beams of microwaves.

The twisted laser beam then hits a nano - scopic U-shaped gold grating which serves as a template for the light, further twisting the beam in either a right or left - handed direction.

But the researchers have demonstrated experimentally that their setup — which includes lasers to feed beams of polarized light into a network of optical fibers, beam - splitters and other optical devices — gives results that agree closely with their predictions.

By carefully measuring the deflected light scientists can detect tiny differences in intensity across the spectrum which inform them about the chirality of the grating the laser beam interacts with.

A twisted laser beam hits a nanoscopic U-shaped gold grating which further twists the beam in either a right or left - handed direction.

The chamber is completed insulated, so the researchers used a system of lasers, which beam across the chamber, to detect cloud formation.

After being hit with laser beams, a small plastic pellet (sunlike object) emits x-rays, some of which bombard a pellet of silicon (blue and purple).

A series of laser beams will run alongside all of the telescope's elements and into detectors, which will sense any vibrations the shock absorbers let through.

Passing gravitational waves alter the lengths of the beams» paths, causing fluctuations in the laser light's brightness, which physicists can detect.

«We don't really understand the [structure] of laser beams, which is very important,» says study co-author Jerome Moloney, director of the U.A.'s Center for Mathematical Sciences.

But in this case, they first sent the beam through a special spiral - shaped grating, which shaped the laser beam in such a way that if you looked at it in cross-section, it would consist of concentric rings.

An incident laser beam (pink beam at left) strikes the resonator, which consists of two layers of gold separated by an air gap.

Optical physicists have been using spiraling laser beams, in which light waves are twisted into vortices, for almost 30 years, says Jo Verbeeck, a materials scientist at the University of Antwerp in Belgium and first author on the Nature paper.