This is the highest - capacity undersea cable ever built — about ten million times faster than your average cable modem — and we're
beaming light through it starting today.»
Each of these projectors is punctured by pinholes patterned after the positions of stars in the sky; a mercury vapor lamp encased by the colander
beams light through the holes to create an accurate map of the stars on the ceiling of the dome.
Not exact matches
A laser
beam (consisting of coherent
light) is split by being passed
through a half silvered mirror.
At last I perceived a
beam of
light glimmering at time top of the house (for such I may call the body I had been inclosed in), whither ascending, I gently let myself» down
through a kind of chimney, and issued out at the nostrils as the window was wide open, I sallied forth into the open air: but, to my great astonishment, found myself unable to fly, which I had always during my habitation in the body conceived of spirits; however, I came so lightly to the ground that I did not hurt myself and, though I had not the gift of flying (owing probably to my having neither feathers nor wings), I was capable of hopping such a prodigious way at once, that it served my turn almost as well.
SPACING OUT Quantum communication
through space is possible thanks to a Chinese satellite that
beams particles of
light down to telescopes like this one in Xinglong, China (shown here tracking the satellite's location with a laser).
After shining the
light beam through a crystal to entangle the photons, the physicists split the
beam in two, letting half of each entangled pair pass though the cat cutout.
Whereas classical physics insists that two
light beams will pass right
through each other untouched, some of the earliest predictions of QED stipulate that converging photons occasionally scatter off one another.
Optical interferometry at CHARA requires collecting the
light beams from six different telescopes, sifting
through multiple gigabytes of data, and then combining the
beams to synthesize the kind of image that otherwise would be possible only with an enormous space telescope.
Any science fiction aficionado has seen it all before:
beaming through walls, riding in starships that move faster than
light, or traveling instantly to distant places in space and time.
It works by projecting
beams of
light through an oxygen - permeable window into a liquid resin.
To figure out the structure of a protein, you shoot a laser
beam, ideally while mimicking a cartoon laser sound,
through a crystal of that protein and study the resulting
light diffraction pattern.
Now, when the laser
beams rejoin, scientists see interference in the
light's pattern, a jarring mismatch of peaks and valleys that spill the secrets of gravitational waves — if scientists can read
through the static of local noise that can also jiggle the mirrors and mar the signal.
In this photo of the angular - selective sample (the rectangular region), a
beam of white
light passes
through as if the sample was transparent glass.
One way to image these cause - and - effect relationships is
through optogenetics, which involves genetically engineering mice so that their neurons fire when hit with a
beam of
light shone
through the skull.
When a gravitational wave moves
through the detector, though, it should stretch one arm of LIGO while shortening the other, changing the path of the
beams and causing the rejoined waves to produce a detectable pattern of
light.
At each of the facilities, a laser shoots a 35 - watt infrared
beam through a Faraday isolator, which directs and polarizes the
light.
Each
light shines a flickering
beam through the mesh of the sculpture — a sound signal carried on
light.
The team also observed that graphene plasmons refract (bend) when they pass
through a prism - shaped graphene bilayer, analogous to the bending of a
light beam passing
through a glass prism.
Lasers have long been at the heart of modern telecommunications because their intense
light beams can be chopped up to represent digital currency's 1s and 0s and can travel
through optical cables at
light speed.
The team monitored the passage of
light through the waveguide using a near - field scanning optical microscope and confirmed that a narrow
beam of
light successfully passes
through the waveguide forwards, but that the wave's symmetry breaks down when traveling backwards2.
The opposing
beams canceled out one another, creating a
light field with uniform intensity that allowed the field's photons to pass
through the Styrofoam particles instead of bouncing off their surface.
In this test, a
beam of
light is projected
through two parallel slits cut in an opaque barrier and then onto a white screen.
When a
beam of
light is shone
through two narrow holes in a screen, the
light waves leaving the holes spread out like ripples on a pond.
A laser
beam passing
through a crystal can suddenly burst into a spray of
light.
As the quasar's energy
beams through this plunging gas, Barkana and Loeb calculated, the gas and the shock wave imprint a distinct pattern upon the spectrum of the quasar's
light.
The research team from the Centre for Photonics and Photonic Materials, and the Centre for Nanoscience and Nanotechnology at the University of Bath, used a special white -
light laser built in - house and directed it
through several optical components to put a twist on the
beam.
After passing
through the gaps, the surface waves initially enter the output optical waveguides as modulated
light beams and are then superimposed.
This work is an early glimpse at medical robots that doctors could navigate
through a patient's body from the outside with a focused
beam of
light, Tang says.
In the double - slit experiment, a
beam of
light passes
through the two slits and produces an interference pattern on a detector screen — a pattern of
light and dark bands.
«Depending on where we point the
light beam, we can also stimulate individual muscle groups — exactly the same way the body does it
through the nerves.»
In the early 19th century, the English physicist Thomas Young passed a
beam of
light through two narrow slits in a screen, and demonstrated the wave - like properties of
light.
He started by splitting a
light beam as it passed
through a 400 - foot - long glass fiber, which created a 40 - picosecond gap of darkness as one part of the
beam lagged behind the other.
Conventional lasers build their bright
beams by bouncing
light back and forth between two mirrors and
through a block of material called the gain medium.
This is the case in Stupp's polymer, so a
beam of infrared laser
light (with wavelength 1068 nanometres) shone
through it will emerge in the green part of the spectrum with a wavelength of 534 nanometres.
He ran some of the residue
through his spectrometers and chromatographs, which shoot a
beam of
light at a sample to measure its absorption.
They «pinned - down» the
light by shining
beams in opposite directions
through the device to create a standing wave.
In the Rochester setup, laser
light was measured and then shunted
through a
beam splitter.
A water sample is placed inside the cylinder where it interacts with zinc ions, and a laser
light is
beamed into the object and onto the sample
through a small hole, Yakovlev explains.
A
beam of
light shined
through the superlattice of this zero - index metamaterial was unaffected, as if it had passed
through a vacuum.
Sunlight that makes it
through falls onto the concentrator (2), a concave panel of 180 mirrors that focuses the
light into a
beam and sends it into a 16 - foot - long test chamber (3).
When co-author Zhaoming Zhu, Gauthier's postdoctoral research associate, encoded information onto one of these
beams, the data could be imprinted on these newly created phonons and retained for 12 billionths of a second, long enough to be transferred back to
light again by shining a third laser
through the fiber.
Then one day in April 2011, Gaeta sent a
beam of
light into one end of the fiber and
through a time lens, splitting the
beam into two parts.
You might have seen the
light beam traveling
through the water, which should have been relatively narrow, as the
light does not interact much with the water molecules.
Using a digital micromirror to split
beams of
light and direct them
through apertures in polymer pyramids, Northwestern University researchers drew a variety of molecular architectures and used those to make up the «land» in a
But that speed changes when
light passes
through a material, like glass or water, or when it runs into another
light beam.
«It's not a glass lens like you'd find in a camera,» Fischer said, «but we call the technique «electron lensing» because, like a lens that focuses
light, the electron
beam changes the trajectory of the protons flying
through it.»
Rather than just rerouting the rays of
light striking an object, a time cloak would have to deflect all the
light beams influenced by the object as it moves
through space.
The time lens combined the two techniques: It involved hitting a
beam of
light with a laser just as it passed
through a glass fiber, allowing considerable control over the
beam's speed.
The easy part is creating entangled photons: just shoot
light through a special, «downconverting» crystal that acts as a
beam splitter; it produces separate yet linked rays.
Since interacting
light beams with different colours pass
through a nonlinear optical material at different speeds, they can become «out of step» and the desired effect can be lost.