Synopsis: Photonics & laser:


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If the cats glowed under a special light the transfer and expression was successful. Even better news is that the transgenic cats have passed successfully both traits (glowing and resistance) along to their offspring.


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It is so thin light and flexible that it can be attached to the skin where it will bend

--so light they can be laid on a soap bubble without breaking it. They can also withstand extreme bending with radii of less than three micrometres able to be crumpled like a piece of paper.

When the wearer moves the sensor close to a magnetic field the sensor is shown to be operational when the LED array lights up.


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#Lasers have turned this metal super hydrophobic The ability to repel water has so many potential uses.

With a precise and powerful laser that etches a pattern of micro -and nanoscale structures onto the surface of metal--building on earlier work that used laser-patterning to absorb light to render metal black--creating a material that both absorbs light

and repels water. The material is much more slippery than Teflon, with the added benefit that the structures are part of the material

which absorb solar energy in the form of heat and light, since the surface is highly efficient at absorbing, rather than reflecting, both.

It currently takes an hour to etch a square inch of metal surface using an extremely powerful laser that reaches peak power equivalent to that of North america's entire power grid (luckily each pulse lasts only 1 femtosecond--1 quadrillionth of a second.


www.collective-evolution.com_category_sci-tech 2015 00026.txt.txt

#Holograms You Can Actually Touch Are Here It every science-fiction lover dream, holograms tangible enough to touch.

Principle Investigator Yoichi Ochiai and his fellow researchers at DNG have found a way to use lasers,

interactive holograms comprised of tiny points of light called voxels. Using femtosecond lasers (a femtosecond is a quadrillionth of a second,

and the lasers transmit bursts that last 30 to 270 femtoseconds), the team can make holograms that are safe to touch, Popular Science reports.

The images are three-dimensional, with resolutions up to 200 000 dots per second. The voxels are light emitted by plasma that created

when the laser focused energy ionizes the air. According to Ochiai, when touched the hologram texture feels like sandpaper.

Although previous studies have used nanosecond and femtosecond lasers to create images, the DNG researchers say preceding studies haven achieved resolution this high,

and would otherwise burn human skin. Since the lasers fire at such a high speeds, theye able to react in realtime,

and researchers have demonstrated its ability to make usable holographic checkboxes and hearts that break when touched. hologram To create their hologram,

researchers fired their femtosecond laser through a spatial light modulator, which continues the beam through a series of lenses, a mirror and a Galvano scanner,

which positions a mirror to precisely direct the laser beams. A camera underneath the hologram captures user interaction, allowing the dots to respond to being ouched.

Ochiai says the most surprising thing he realized was that plasma was actually safe to touch in this application,

making the hologram exponentially safer than previously thought. Ochiai says this is machine is just a proof of concept,

and now his team will work to make the holograms larger. Theye limited by the size of the spatial light modulator

which they maxed out with this experiment. The laser itself can transmit up to 7w, and this 1 cubic centimeter experiment only used 1w of the laser power l


www.dailymail.co.uk_sciencetech 2015 01761.txt.txt

#The turbines WITHOUT blades: Firm unveils radical design that claims to be quieter and safer than traditional wind farms By Ellie Zolfagharifard For Dailymail. com Published:

00:12 GMT, 19 may 2015 Updated: 00:15 GMT, 19 may 2015 Today wind turbines have colossal blades that spin at speeds of more than 200mph (320 km h).

) While some might consider them majestic structures, others argue they are a threat to bird life and a noisy blight on the landscape.


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and even lasers, there are many ways people can restore or correct their vision. But the latest so-called'bionic'lens promises to not only restore sight,

These mirrors bounced the light from objects in front of the wearer approximately four times around this ring before sending the image to the retina.

so that the only light that hits their retina is created the light by the magnified process.


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#Nasa spots most luminous galaxy in the universe-shining with the light of more than 300 TRILLION suns A dazzling galaxy that shines with the light of more than 300 trillion suns has been discovered by astronomers.

'This dazzling light may be from the main growth spurt of the galaxy's black hole.''Supermassive black holes draw gas

The light is blocked by surrounding cocoons of dust. As the dust heats up, it radiates infrared light.

Immense black holes are common at the cores of galaxies, but finding one this big so'far back'in the cosmos is rare.

Because light from the galaxy hosting the black hole has travelled 12.5 billion years to reach us,

When a black hole feeds, gas falls in and heats up, blasting out light. The pressure of the light actually pushes the gas away

creating a limit to how fast the black hole can continuously scarf down matter. If a black hole broke this limit,


www.dailymail.co.uk_sciencetech 2015 01857.txt.txt

Called the Tactical Assault Light Operator Suit (Talos it effectively gives its wearer superpowers, such as superhuman strength and a way of deflecting bullets,

These mirrors bounce the light from objects in front of the wearer approximately four times within this ring before sending the image to the retina.


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Prime minister David cameron said the new unit is aimed at'shining a light on the web's darkest corners'as he announced a package of measures to tackle online child abuse.


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The son of British inventor Sir James Dyson has created an innovative light that he claims will last,

Jake Dyson CSYS task light, which comes in three different forms, uses'Heat Pipe'technology to direct heat away from LEDS to stop them becoming dimmer and less efficient over time.

His gripe with conventional lights is that they fail to protect LEDS from heat, exposing them to temperatures up to 130°C (266°F)

meaning LEDS produce worse quality light over time. To solve this problem, he has designed CSYS task lights that have unique technology

in order to direct heat away from their LEDS. perating at 55°C (131°F), they don lose quality or efficiency for 37 years, according to his website.

which produce an even spread of light, so they are highly efficient without using diffusers.

Dyson has also come up with a way get the lights, which come in clamp, desk and standard light forms,

CSYS task lights adjust horizontally, vertically and rotationally with the touch of a fingertip, the website says.

While conventional lights usually rely on springs and tension to stay in position, the new design uses gravity.

The lights are also touch sensitive so that people can dim them easily, while the CSYS lights remember the last lighting level.

The LEDS use a fifth of the energy of a conventional halogen bulb and because there are few bulbs to replace in a lifetime,

Dyson claims the light could save users up to £1, 200 ($1, 835) over 37 years.

On coming up with the design, Dyson said that his starting point was to investigate the failures of modern lights


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Samsung's Mirror Display technology also does need not the ambient backlight for displaying on-screen images that LCD technology does.


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A tabletop device called the Holus converts any digital content into 3d holograms, which feature in the sci-fi film series in the form of chess sets, maps and warning messages.

so developers can convert digital content into holograms.''Four distinct are stitched together by algorithms provided in our applications and software development kit (SDK),

while Leap Motion controllers can also be used to manipulate holograms. Vincent Yang, CEO, explained: ur vision with Holus was to create an open platform that was accessible to absolutely everybody. olus has unlimited potential that allows people to tailor everything to their personal needs.


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The ability for the super-thin material to produce light is seen as a key step to create super-thin computer and TV screens.

'He added that the light'will pave the way towards the realisation of atomically thin, flexible and transparent displays'.


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this can also include radio waves, lasers and even sound waves. The microwave gun is evidence of plans by Russia to modernise its armed forces,


www.dailymail.co.uk_sciencetech 2015 02606.txt.txt

Traditional displays like those on a mobile phone require a light source, filters and a glass plates.

flexible, colour-changing displays that don't need a light source-their skin.''That was the motivation: Can we take some inspiration from biology

The new method doesn't need its own light source. Rather, it reflects the ambient light around it.

A thin liquid crystal layer is sandwiched over a metallic nanostructure shaped like a microscopic egg carton that absorbs some light wavelengths

and reflects others. The colours reflected can be controlled by the voltage applied to the liquid crystal layer.


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#High-speed lasers create images that respond to strokes without burning the skin By Victoria Woollaston for Mailonline Published:

23:40 GMT, 29 june 2015 From Princess Leia in Star wars to a holographic Tupac at the 2013 Coachella festival, holograms have fascinated scientists for decades.

But because they use lasers to project the hologram, it makes interacting with the images potentially dangerous-until now.

Researchers have created 3d holograms using lasers that fire at a quadrillionth a second, and they respond to touch without burning the user's skin.

Scroll down for video Researchers from the University of Tokyo used femtosecond lasers to create 3d holograms that are safe to touch

Holography uses lasers to record the brightness, contrast and dimensions of an image and project this image, typically in 3d,

and are created when the energy from the laser ionises the air and releases extra energy in the form of photons

but these involved lasers that pulse with bursts that last for nanoseconds, for example. Although this is a relatively short period of time,

To solve this problem the Japanese researchers created plasma voxels using femtosecond lasers instead. A femtosecond is a quadrillionth of a second

and these lasers pulse with bursts that last between 30 and 270 femtoseconds at a time. The researchers fired the femtosecond laser through

what's known as a spatial light modulator and a series of lenses into a Galvano scanner.

This scanner positions the beam through two more lenses onto a mirror to finally show the final voxel shape,

dubbed Fairy Lights. A camera under the hologram is then able to capture and record a user's interactions,

allowing the voxels to be touched.''In reality, when a person touches the voxels the finger generates a shockwave,

An illustration in the research paper, called Fairy Lights in Femtoseconds: Aerial and Volumetric Graphics Rendered by Focused Femtosecond Laser Combined with Computational Holographic Fields,

additionally shows it being wrapped around objects and used to create a virtual plant.''We present a method of rendering aerial and volumetric graphics using femtosecond lasers,

'explained the team. In a video revealing the technology, the touches are shown being used to tick a virtual checkbox (pictured),

and a broken heart'A high-intensity laser excites a physical matter to emit light at an arbitrary 3d position.'

since plasma induced by a femtosecond laser is safer than that generated by a nanosecond laser.'

'The holograms and workspace of the system are up to 1cm3 in volume but the researchers said they could be scaled up depending on


www.dailymail.co.uk_sciencetech 2015 03021.txt.txt

whereas LHCB conducted the search with the lights on. The experts described the previous searches as looking for silhouettes in the dark,

whereas LHCB conducted the search with the lights on. This illustration shows an alternative layout for the pentaquark,

whereas LHCB conducted the search with the lights on. This illustration shows an alternative layout for the pentaquark,


www.dailymail.co.uk_sciencetech 2015 03170.txt.txt

and vehicle Lexus has built a car that pulsates with light in time with the driver's heartbeat in order to display the connection between the driver and the car.

Ford develops smart lights...The village where only ROBOTS drive: University launches autonomous driving test track The village where only ROBOTS drive:


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The impulses stimulate the retina remaining cells, resulting in the corresponding perception of patterns of light in the brain.


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This is particularly impressive because there not a linear correlation between faces in visible and infrared light.


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the solar cell obtains adequate light, even in the darkness of winter, said Fraunhofer. On the chip are magnetic


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The CSRMESH protocol is used to connect Bluetooth Smart enabled devices controlling lights heating thermostats or even mechanisms to open and close curtains.


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based on photolithography capable of high-resolution patterning on large substrates. There is no need for additional capital investment

The emission of red, green and blue lights was confirmed also in a test involving the application of voltage rather than illumination,

such as using the novel photolithography in a multiple patterning process. An example would be creating an OLED array that adds a fourth color to red

as well as developing previously-unseen devices such as a new sensors that integrate OLED with the organic photodetector o


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which can detect long wavelength infrared radiation. Lidar (light detection and ranging) sensors operate in this wavelength range, for example.

They are used, among other things, as distance sensors in cars. Another application is the measurement of dust particles and trace gases in environmental monitoring.


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A likely application says Johan Liu is the integration of graphene-based film into LEDS, lasers and radio frequency components for cooling purposes. s


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which can detect long wavelength infrared radiation. Lidar (light detection and ranging) sensors operate in this wavelength range, for example.

They are used, among other things, as distance sensors in cars. Another application is the measurement of dust particles and trace gases in environmental monitoring.


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A likely application says Johan Liu is the integration of graphene-based film into LEDS, lasers and radio frequency components for cooling purposes n


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or reducing the need for a backlight) and have reached efficiencies that are already comparable to organic LEDS in terms of quantum efficiency (photons emitted per electron injected).


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#Lasers create surface so hydrophobic that water bounces off like a ball In the study of hydrophobic surfaces,

Now, researchers at the University of Rochester have used lasers to create a surface so hydrophobic that a single droplet of water can bounce up and down on it multiple times like a ball.

shoot it with lasers. Chunlei Guo and Anatoliy Vorobyev of the University Institute of Optics discovered a laser-patterning technique that etch nanoscopic structures onto a surface.

As you can see from the above video, the surface etched pattern is so hydrophobic that water literally bounces off,

Water rolls off the laser-etched surfaced when it titled less than five degrees, whereas a common Teflon pan has to be turned a steep 70 degrees.

The team is also exploring how to apply the laser-patterning technique to other surfaces.


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The new cells have certified a external quantum efficiency of 96%at 300nm wavelengths which the team said shows that charged carrier surface recombination is no longer a problem and that for the first time,


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#DARPA laser scanning: Bending light with a microchip The Defense Advanced Research Projects Agency (DARPA) has demonstrated solid-state optical phased array technology in a microchip bringing the ability to bend light to the battlefront.

Phased array optics (PAO) is based on using sub-wavelength phase and amplitude modulators in order to manipulate the wavefront of light.

By having a large array of electrically adjustable elements, it is possible to locally adjust the properties of light (using each element) such that through the interference with other elements,

the whole array is effectively teeringthe light. Without thinking about it, you may have experienced directly something similar.

Because the speaker separation is roughly the order of the wavelength, it is possible to notice the interference effects

to shape the wavefront of light (dynamically or otherwise) in order to form arbitrary electromagnetic radiation patterns. But in the former case, radar antennas are used as the electrically tunable element.

So what the big deal here? Well, the technology so far deals with the parts of the electromagnetic spectrum that are relatively easy to manipulate spatially and temporally,

i e. wavelengths that are compared large with our ability to build things that are smaller than this wavelength,

and frequencies in the GHZ, phased array optics is based on operating in the visible, with much smaller wavelengths and oscillations much faster (hundreds of nanometers and many hundreds of THZ,

) The shrinking of light-based technologies presents its own problems. Researchers have been trying to apply the same radar engineering concepts to visible light for many decades.

However, fabrication issues and technological limitations rapidly come into play. State of the art solutions come in the form of LIDAR (a portmanteau of ightand adar technology,

where electromechanical devices are used (such as gimbal, actuators, and MEMS) and liquid-crystal-based spatial light modulators, which act as electrically tunable gratings 1. The former has the problem that a mechanical assembly is used to sweep the laser back and forth,

which is slow, impact-sensitive, and costly. And the latter suffers from low efficiencies and limited resolutions,

DARPA breakthrough 3 uses a microchip to control the light, vastly different to existing methods.

The SWEEPER technology has demonstrated that it can sweep a laser back and forth more than 100 000 times per second, 10,000 times faster than current state-of-the-art mechanical systems.

It can also steer a laser precisely across a 51°arc, the widest field of view ever achieved by a chip-scale optical scanning system.

DARPA foresees this technology will open up a new class of miniaturized, extremely low-cost, robust laser-scanning technologies (LIDAR),

which last year published strikingly similar work 4 to this press release, with reference to LIDAR TECHNOLOGY, in the form of a silicon chip able to bend light

which operates in the infrared part of the spectrum. Those researchers built a series of pipes for light (phase shifters) on a microchip,

thus controlling the direction of the light beam. The Caltech team describes how they form the image as follows:

by applying stronger or weaker currents to the light within the phase shifter, the number of electrons within each light path changeshich, in turn,

changes the timing of the light wave in that path. The timed light waves are delivered then to tiny array elements within a grid on the chip.

The light is projected then from each array in the grid, the individual array beams combining coherently in the air to form a single light beam and a spot on the screen. herefore, thanks to the complexity of the task at hand,

it not unreasonable to speculate that the DARPA technology is an extension of this work,

but for more specific battlefront demands. If so, it means that phased array optical technology has reached finally silicon-processing-level integration a significant landmark in its development e


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and to block light, heat or cold. These (as you may have guessed) are quite effective, which has slowed the adoption of relatively expensive and seemingly unnecessary electronically controlled window tinting.

and fully altering the color temperature of transmitted light. They can be integrated easily into new windows

but still allow 90 percent (or more) of the available light in. Or, a setting change could dim the entering light

or change the color of the light along a spectrum from cooler blue to warmer yellow The image to the above right shows the different potential states the window tiles could operate In this is a mock-up based on the results from the single device.

The video below is an exciting presentation from the researchers on where they see this technology ending up.

The interaction of incoming light with each electrophoretic pixel (two electrodes) depends on the position of the particles relative to these electrodes,

and the light can be scattered (white state), or not (dark-state), or somewhere in-between (grey scale).

E-ink devices are fabricated normally using photolithography which is the same technology used to pattern microchips


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and provide an improved color gamut above that of fluorescent lights, the price is the technology greatest drawback.

It was synthesized through pulsed laser ablation (PLA) with Tokyo Chemical industry Co. 1-octyne solution (10ml) over several eight-hour periods.


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along with better xenon, LED and laser headlamps; steerable headlamps; and night vision. How it works: GPS knows where the road curves

then shine a light on them if theye a likely hazard (on or along the side of the roadway).


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#New material combines photons for big solar energy gains An innovative new approach to solar energy from University of California Riverside could dramatically increase the amount of light available to contemporary solar panel designs.

this new study looked at taking currently inaccessible infrared light and turning it into visible light. They hope that by directing this newly fabricated light onto conventional solar panels,

the efficiency of solar power could be improved greatly, for an affordable price. Infrared light currently passes straight through most silicon solar cell technologies

representing a substantial inefficiency in generating electricity from sunlight. Much of solar research has worked to directly convert infrared light to electricity,

but such technologies change the transistor design, and thus the manufacturing process for solar panels. Their impacts tend to be limited by cost concerns, more than anything else.

and instead looked to make the light conform to the panels. They created an all-new hybrid material that takes two photons of 980-nanometer infrared light shone onto it and p convertsthem into one photon of 550-nanometer orange yellow light.

This photon has almost double the energy of the originals and more importantly, it exists in a form that existing solar panels can absorb.

an inorganic layer with semiconductor nanoparticles this absorbs the infrared light, but isn capable of directly passing it into the electricity generating process.

which takes these long wavelength photons and combines them. The resulting, lower-wavelength photons can move on to be absorbed by the transistors of the solar panel as normal,

just as though it has been that color upon first arrival. The overall costs of solar power lie much more in installation, maintenance,

In general, this sort of research into the manipulation of light could allow a wider rollout of solar power around the world.

if its energy could be added to that of the cloud-filtered visible light, solar might start to make good financial sense in less sunny areas than Texas and California.

The ability to accurately convert photons between wavelengths could have a wide range of applications, from medical imaging to optical data storage,


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such as highly Efficient light Emitting Diode lasers and radio frequency components for cooling purposes, Liu said. raphene-based film could also pave the way for faster,


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what it call a reakthroughin laser communications technology. The company claims to have tested successfully a new laser that can transmit data at 10 gigabits per second. hat ten times faster than any previous system,

and it can accurately connect with a point the size of a dime from more than 10 miles away,


www.firstpost.com_tech 2015 02784.txt.txt

what it call a reakthroughin laser communications technology. The company claims to have tested successfully a new laser that can transmit data at 10 gigabits per second. hat ten times faster than any previous system,

and it can accurately connect with a point the size of a dime from more than 10 miles away,


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what it call a reakthroughin laser communications technology. The company claims to have tested successfully a new laser that can transmit data at 10 gigabits per second. hat ten times faster than any previous system,

and it can accurately connect with a point the size of a dime from more than 10 miles away,


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what it call a reakthroughin laser communications technology. The company claims to have tested successfully a new laser that can transmit data at 10 gigabits per second. hat ten times faster than any previous system,

and it can accurately connect with a point the size of a dime from more than 10 miles away,


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Earlier this year, Fujitsu showcased a concept phone that uses infrared lasers and cameras to scan irises for the purpose of unlocking a device.


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#Will Zuckerberg use his Internet-laser drones for good or for evil? According to the International Telecommunications Union more than 50 percent of the world population is currently without Internet access.


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This weapon uses an onboard laser system to gauge distance to its target. It has a programmable air burst round that determines the distance to its target.


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Lasers have been a key area of advancement: Lockheed martin test fired a laser weapon in March that took out a truck engine from a mile away,

while the Navy deployed a Laser weapon System (Laws for short) on a vessel in the Persian gulf in December.

Next stop, railguns, right t


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#Researchers develop special fluorescent ink to reveal counterfeit products One day soon, the simple act of taking a photo with your smartphone could help fight crime,

Northwestern University scientists have invented new advanced fluorescent inks revealed through a phone's ultraviolet light that serve as the product barcodes of the future.

Under natural light, this kind of ink is invisible, but is revealed when highlighted by a smartphone ultraviolet light.

To defeat counterfeiters, this ink could be applied to nearly anything, from the world most expensive handbags to rare liquor and even banknotes.


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#Princeton Researchers Created Rice Grain-Sized Laser In today world, people witness new discoveries daily.

In the series of such discoveries, a group of researchers at Princeton university has made effectively a laser,

According to the reports, the laser is prepared with the simulated atoms, notably known as quantum dots. The study is published in the Science journal.

Researchers created laser, while exploring the use of semiconductor material pieces as parts for quantum computing.

and not lasers. Quantum dots act like single atoms as segments for quantum computers. An associate professor of physics, Jason Petta at Princeton and the lead author of the study,


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