and other sophisticated methods, including etching identification codes on produce with lasers or micro-percussion markers that make tiny indents. hey each believe they have the holy grail product tracking solutions sitting in their laptop,
With laser rangefinders and stereo cameras for vision, hydraulically actuated aluminum and titanium limbs and fully articulated humanlike hands, Atlas is envisioned as a humanoid hero who can walk undaunted into dangerous environments
The 3d-printed metal gun was constructed using a laser sintering process capable of shaping tougher metals like stainless steel.
The window-mounted device uses a high-frequency laser microphone to pick up bothersome sounds then sends out sounds of its own at 180 degrees,
Blinding lasers Desert Wolf s website states that its Skunk octacopter drone is fitted with four high-capacity paintball barrels, each capable of firing up to 20 bullets
000 bullets at a time as well asblinding lasers and onboard speakers that can communicate warnings to a crowd.
The second paper presents designs that show how to build electrical components (such as resistors, inductors, capacitors, sensors and actuators) with self-folding laser-cut materials.
#New 3d printed materials lighter than water and as strong as steel A Nanoscribe 3d printer can print models of the Empire state building in a space the width of a human hair using precision lasers.
The printer s mirror-focused laser shines on and hardens a droplet of liquid plastic on a slide.
A computer moves the plate under the laser, selectively hardening it, layer by layer, to match a digital 3d model.
#Panorama Synergy demonstrates viability of Lumimems Reader Panorama Synergy announces that through extensive laboratory testing it has demonstrated the viability of its unique laser-based Optical Readout System, the Lumimems Reader.
and therefore more accurate, is an optical system using a laser directed at a MEMS sensor.
and the need to precisely align the laser with the tip of the tiny MEMS sensor.
#Navy's futuristic laser weapon ready for action The laser has a variety of attack modes,
The U s. Navy announced that its high-tech laser weapon is ready to disable and destroy enemy drones
The 30-kilowatt laser weapon system (Laws) is housed aboard the USS Ponce, a naval vessel stationed in the Arabian Gulfa body of water located south of Iraq that separates the Saudi arabian peninsula from Iran.
While sailors have not yet used the new laser to destroy any real enemy targets, the Navy is prepared to do just that,
and the laser weapon is not in a box waiting for a special occasion, "Klunder told reporters at a news briefing Wednesday, Dec 10, in Washington, D c. Under the Geneva convention,
militaries are allowed not to use laser weapons directly against people a condition that Klunder said the U s. Navy with abide by, according to Optics. org.
Sailors operate the laser using a video game-type controller according to Navy officials. With this controller, they can perform a variety of operations.
the laser can deter the threat with an effect known as optical"dazzling.""This nonlethal option which amounts to a very bright glare is meant to serve as a warning,
sailors aboard the Ponce can increase the strength of the laser's highly concentrated beam,
The laser weapon also shot a small drone out of the sky according to Navy officials.""We ran this particular weapon, a prototype, through some extremely tough paces,
heat and humidity conditions that aren't ideal for the operation of a laser. The data collected from these trial runs will be used to develop new laser weapons for the Navy under the Office of Naval Research's Solid-state laser-Technology Maturation program.
These future lasers could one day be deployed on both large destroyer ships (used to launch missiles) and smaller combat ships
Navy officials said. Laser weapons systems like the one aboard the USS Ponce could be used in ground-based defense systems,
as well as in the air, according to Navy researchers. These weapons are sought after because they don require highly explosive gunpowder
laser weapons may also be more reliable than conventional weapons. Of course, the U s. military is also pursuing this new breed of weapons for economic reasons.
Laser weapons cost less to build install and fire, compared with multimillion-dollar missiles, Navy officials said."
In a 2011 test, a laser weapon disabled multiple small boats launched from a U s. warship. And in 2012, Laws downed several drones during a naval test of the system t
they first generated entangled photons by converting a laser beam into pairs of photons that were in opposite polarization states
But X-ray microscopesare difficult to use and coherent X-ray sources like X-ray lasers, in which the light waves have matching phases,
In the future, this could lead to inexpensive microscopes that use ordinary lasers to get this resolution,
To create the effect researchers used lasers to etch nanoscale structures into the metal surface that repel the water.
#Rice-sized laser could be a breakthrough in quantum computing A microwave laser also called a"maser"has been built by Princeton researchers
#Nevertheless, using a combination of atom interferometry and ultra-precision laser techniques, M#ller and his team have,
or tiny laser-photon impacts, which slow the Compton cycles by a precisely known amount.
could serve as the foundation for a new definition of the kilogram tied to a precise laser frequency.
giving materials scientists a new tool for investigating the behaviour of light in the interiors of the complex nanostructures used in lasers, light-based circuits and solar cells."
and in the ultra-small cavities of photonic crystals#components of chip-based lasers and light-emitting diodes."
later it may target the laser, semiconductor and solar-cell industries. He realizes that, by selling the system,
Using lasers and magnetic fields they kept the individual atoms in a lattice arrangement. At positive temperatures, the atoms repel,
But the team also adjusted the trapping laser field to make it more energetically favourable for the atoms to stick in their positions.
or after being sintered by a laser#into a particular structure. So-called"bioprinters naturally use cells rather than plastics to create organic structures.
#Floating, Touchable'Fairy Lights'Unveiled A team of researchers from Japan has found a way to use a high-speed laser to create a touchable plasma display in mid-air.
Unlike many laser lights, these don produce a burning sensation when touched. By upping the speed of the laser from a nanosecond to a femtosecond
--which is one millionth of one billionth of one second--the researchers have increased the level of safety
These lasers do, however, generate haptic sensations, or hock wavesthat feel like an mpulse on the finger
Laser Technique Etches Water Repellence Into Metalthe team of researchers from the University of Tsukuba, Utsunomiya University,
Nagoya Institute of technology and the University of Tokyo believe their laser-induced plasma, which they've dubbed"Fairy Lights,
Laser-induced plasma can also be controlled precisely. The researchers behind the project believe the technology has several applications,
Laser Levitates Diamondsalthough the displays right now are tiny, at just eight cubic millimeters, there hope that they will become larger as the technology progresses.
Researcher James Anstie at the University of Adelaide and his team are developing an instrument theye dubbed an optical dog nose that uses a specialized laser known as an optical frequency comb to provide a quick and noninvasive way to analyze a person
Anstie and his team shine the laser onto a sample of gas. Since each molecule in the universe absorbs light at different optical frequencies,
the laser system uses light to ensethe range of molecules that are present in the sample,
the S3 center emits a glow when struck by a pulse of laser light. Scientists can then use the lifetime of the resulting luminescence to calculate the temperature of the probe:
#Scientists arm cells with tiny lasers In a feat of miniaturization that makes your Apple Watch look lame,
scientists have implanted tiny lasers within living cells. The lasers can be used to track individual cells for days and weeks,
the researchers report this week in Nano Letters. A laser requires two things: a material that can be stimulated in some way to produce light
and a"resonant cavity"that will ring with light waves of particular wavelengths much as an organ pipe will ring with sound waves of distinct frequencies.
greatly amplifying the light to create a laser. Researchers had used previously living cells to fashion lasers by loading the cells with fluorescent proteins
and placing them within a resonant cavity. Now, a team of physicists and biologists have gone a key step further,
coaxing a cell to envelop a tiny plastic sphere that acts like a resonant cavityhown in green in the micrograph abovehus placing a whole laser within a cell.
triggering laser action and amplifying itself. Crucially, each laser shines at a couple of distinctive wavelengths depending on the precise size of the sphere,
as shown in the graph. So although demonstrated only in cultured cells, the technique might someday be used to track the movement of individual cells,
of which trapped photons using laser pulses in a fibre optic-cable cable. The team claimed this had produced Hawking radiation
The team used one laser to confine the BEC to a narrow tube and another to accelerate some of it faster than the speed of sound.
and forth between the inner and outer horizons triggering the creation of more Hawking phonons each time much like a laser amplifies light.
Physicists call this effect a black hole laser The Hawking radiation exponentially grows it self-amplifies Steinhauer says.
The device looks like a funky golf club with a laser at the end says PG&E spokesperson Hailey Wilson.
#Largest laser gives diamond a record-setting squeeze Diamond has been subjected to the wrath of the world's largest laser
Using the National Ignition Facility (NIF) at Livermore Smith's team bombarded tiny targets with 176 laser beams to put the squeeze on diamond.
and then precisely timed laser pulses to strike the cylinder's interior walls. This caused the gold to emit an avalanche of X-rays that bombarded the stone triggering powerful compression waves inside it.
Laser signals carry more data but the light is almost undetectable by the time it reaches Earth. Now a nanoscale light detector could make such deep-space missives easier to read.
Laser communication is one of the technologies we are considering says Bas Lansdorp CEO of the Mars One project which aims to place a human colony on Mars by 2025.
This development by NIST makes long-distance laser communication even more interesting g
#Japan's huge magnetic net will trawl for space junk SOMEWHERE in Earth's orbit a satellite explodes into a terrifying cloud of debris. Moments later Sandra bullock
#NASA orbiter will use laser to bring broadband to moon The man in the moon is about to get his own version of a broadband connection as well as a visit from China.
NASA's LADEE moon orbiter due to launch on 7 september will use laser pulses to exchange high-capacity signals with Earth.
So LADEE will carry a laser with a near-infrared wavelength that is thousands of times shorter as part of the Lunar Laser communication Demonstration experiment.
Laser beams do not spread out as much as radio waves while they travel which means that they must be aimed very precisely at detectors on the ground.
Earth's atmosphere including clouds can also thwart laser signals. To maximise the chance of cloudless skies LLCD will be able to beam its light to any of three detectors in New mexico California or Spain.
or so of LADEE's planned four months in lunar orbit but a follow-on mission called LCRD will test laser links from Earth orbit for two years beginning in 2017.
Choreographed high-power lasers or electron beams can fuse and sculpt metal powders into high-performance machine parts.
Instead Gianluca Sarri at Queen's university Belfast UK and colleagues used rapid laser bursts to make positrons in their smaller budget device.
The laser pulse ionises inert helium gas generating a stream of high-speed electrons. This electron beam is directed at a thin metallic foil
In 2008 scientists at the Lawrence Livermore National Laboratory in California produced large quantities of antimatter by directing an extremely powerful laser at a tiny gold disc.
They needed much stronger lasers and those lasers are expensive. Also they produced streams of positrons that were extremely broad
whereas our jet is a hundred times narrower and remains pencil-like as it propagates he adds.
laser signals could make it possible to build smaller, lower powered satellites that can still talk to the ground easily."
the researchers developed a prototype device by using a laser to cut a hole in a silicone tube to add drugs. ight
The material is made from a collection of nanocavities and you can tune the absorption just by changing the size of the nanocavities Chou says.
Another key characteristic of the new material Chou says is that it is matched well to existing manufacturing technology.
and had avoided the side of the chamber where their hippocampal cells were activated by the laser now began to spend more time in that side
a robot made almost entirely from parts produced by a laser cutter that folds itself up
which would self-assemble from laser-cut materials when uniformly heated. The new work is similar
The robot is built from five layers of materials all cut according to digital specifications by a laser cutter.
After the laser-cut materials are layered together a microprocessor and one or more small motors are attached to the top surface.
Zhu shone a laser through the material while tilting the pillars at various angles and found she could control how much light passed through based on the angle at which the pillars bent.
In this case the laser performs dual functions. We use two different light pulses: one to modify the material and one to measure the electrical conduction.
to allow laser pulses to pass through it. This all-optical method avoids the need for adding extra electrical contacts to the graphene.
which causes the conductivity to decrease when the electron temperature increases under the illumination of the laser pulse.
#Making the cut Diode lasers used in laser pointers barcode scanners DVD players and other low-power applications are perhaps the most efficient compact and low-cost lasers available.
Attempts have been made over the years to amplify the brightness of these valuable lasers for industrial applications such as welding and cutting metal.
But boosting power usually means decreasing beam quality or focus. And the beam never gets intense enough to melt metal.
Now MIT Lincoln Laboratory spinout Teradiode is commercializing a multikilowatt diode laser system that s bright enough to cut
and weld even through a half-inch of steel at greater efficiencies than today s industrial lasers.
The 4-kilowatt Terablade runs on a novel power-scaling technique developed at MIT that manipulates individual diode laser beams into a single output ray.
This allows for boosting power of a diode laser while preserving a very focused beam. The Terablade has comparable beam quality as compared with traditional manufacturing lasers such as carbon dioxide disk
and fiber says Teradiode cofounder and vice president Robin Huang a former Lincoln Laboratory researcher and Terablade co-inventor.
However because the Terablade is a direct-diode laser it has the highest efficiency and lowest cost of ownership as compared with these other lasers.
Huang says Terablade represents a third generation of industrial lasers. The first generation which evolved a few decades ago was carbon dioxide lasers in
which electricity runs through a gas to produce light. These are very bright but can be as large as trucks
and operate at about 20 percent efficiency. Then came diode-pumped solid-state (DPSS) lasers including disk
and fiber that first transfer energy from diode lasers into a medium usually a crystal before converting it into a laser beam.
These operate only up to about 30 percent efficiency. But the Terablade aptly called a direct-diode laser uses light directly from the diodes skipping the DPSS conversion step
and saving energy Huang says. This means the Terablade operates with just as much power and brightness as all other industrial lasers about 2600 megawatts per square centimeter per steradian at roughly 40 percent efficiency.
At the core of the Terablade is a power-scaling technique known as wavelength beam combining (WBC
Diode lasers are tiny semiconductor devices that when electrically charged cause electrons to create photons of the same wavelength
When fed through an output collimation lens this creates a ray of laser light. An individual diode laser in say a laser pointer can emit a beam in infrared
and near-infrared wavelengths that can be focused tightly to a very small spot but with little power Huang explains.
In the early 2000s Huang Chann and Lincoln Laboratory colleagues built a few prototype lasers based on WBC technology.
One which reached a power level of 50 watts was a world s record for diode laser brightness at that time Huang says.
Today the WBC-based Terablade is a laser module that contains diode laser bars (long arrays of diode lasers) a transform lens a diffraction grating and an output lens.
The light from the diode lasers passes through a transform lens onto the carefully positioned diffraction grating a plate of glass scratched with parallel lines.
There are a few other multikilowatt direct-diode lasers but they run on another popular and similar power-scaling technique called side-by-side
As the number of diode lasers increases the beam quality degrades resulting in a large focused spot limiting the beam s intensity.
This means the Terablade outputs a beam roughly 100 times brighter than these scaled-up direct-diode laser models Huang says.
a 3-foot cube that comes with multiple laser engines a control computer power supplies and an output head for welding
Other customers include top global builders of industrial laser-based machines and system integrators. More broadly our vision is to revolutionize the laser industry Huang says by introducing powerful direct-diode lasers to various applications across the globe.
In the future he adds the company is also looking toward defense applications. One idea is to build a laser that acts as a heat-seeking missile deterrent:
It fires infrared laser light at the missile which would confuse the missile s programming and cause it to lose its target.
The laser s compact design would allow it to be mounted on a fighter jet. With the Terablade technology Huang says The sky is the limit literally y
#$650 million commitment to Stanley Center at Broad Institute aims to galvanize mental illness research The following is adapted from a press release issued today by the Broad Institute of MIT and Harvard.
Lasers can also move energy between two points such as two satellites. But this requires an uninterrupted continuous path between the transmitter and the receiver
At the time he was working on various photonics projects lasers solar cells and optical fiber that all involved a phenomenon called resonant coupling.
Scanning the brain with a laser beam can produce 3-D images of neural activity, but it takes a long time to capture an image
anyone could image the particles after shining near-infrared light on them with a laser pointer. The researchers are also working on a smartphone app that would further process the images
#3-D images with only one photon per pixel Lidar rangefinders which are common tools in surveying
and in autonomous vehicle control among other applications gauge depth by emitting short bursts of laser light
In this week s issue of the journal Science researchers from MIT s Research Laboratory of Electronics (RLE) describe a new lidar-like system that can gauge depth
Since a conventional lidar system would require about 100 times as many photons to make depth estimates of similar accuracy under comparable conditions the new system could yield substantial savings in energy and time
and it works much more reliably than lidar in bright sunlight when ambient light can yield misleading readings.
All the hardware it requires can already be found in commercial lidar systems; the new system just deploys that hardware in a manner more in tune with the physics of low light-level imaging and natural scenes.
In a conventional lidar system the laser fires pulses of light toward a sequence of discrete positions
The laser will generally fire a large number of times at each grid position until it gets consistent enough measurements between the times at
So the MIT researchers system produces an initial provisional map of the scene based simply on the number of times the laser has to fire to get a photon back.
which contrasted the new system s performance with that of a conventional lidar system. They ve used a very clever set of information-theoretic techniques to extract a lot of information out of just a few photons
when exposed to laser light. In the past, researchers have exploited this phenomenon to create sensors by coating the nanotubes with molecules,
Don Boroson on NASA s record-breaking use of laser communications Last week NASA announced that the Lunar Laser communication Demonstration (LLCD) on its Lunar Atmosphere
and Dust environment Explorer (LADEE) spacecraft had made history by using a pulsed laser beam to transmit data over the 239000 miles from the moon to Earth at a record-breaking data-download speed of 622 megabits per second (Mbps). This download speed is more than six times faster than the speed achieved by the best
LLCD also demonstrated a data-upload speed of 20 Mbps on a laser beam transmitted from a ground station in New mexico to the LADEE spacecraft in lunar orbit;
It is NASA s first space-based laser communications system. And it is by far the longest two-way laser communications link ever accomplished.
It includes signaling approaches that allow it to give errorfree performance through our turbulent atmosphere.
It has been known for years that laser communications have the potential to deliver much higher data rates and use smaller space terminals than radio-based systems.
But it has been an elusive goal to bring laser communications techniques and systems to the point where they can actually deliver on their promises.
With the success of LLCD next-generation space mission designers can now feel more comfortable in including a laser communication system as part of their design.
and those grew out of our laser communications developments from the previous 20 years. When Lincoln Lab pointed out to the NASA sponsors that the pieces could add up to this demonstration NASA made the mission happen.
whose electronic properties could be unedin real time simply by shining precise laser beams at them. The work pens up a new avenue for optical manipulation of quantum states of matter,
The researchers mixed the photons from an intense laser pulse with the exotic surface electrons on a topological insulator.
changing it from a conductor to a semiconductor just by changing the laser beam polarization. Normally, to produce such dramatic changes in a material properties,
a former postdoc in MIT Laser Biomedical Research center (LBRC) and one of the lead authors of a paper describing the technology in the Oct 2 issue of the journal Scientific Reports.
which works by sending a laser beam through a sample, then splitting the beam into two.
Traditional quantitative phase imaging uses a helium neon laser, which produces visible light, but for the new system the researchers used a titanium sapphire laser that can be tuned to infrared and near-infrared wavelengths.
For this study, the researchers found that light with a wavelength of 980 nanometers worked best.
while a Lidar system captures 3-D images to discern building facades from the physical environment.
That when they had to install the Lidar system, to better differentiate building facades from the surrounding environment.
The optical lattice was generated using two laser beams traveling in opposite directions, whose fields add up to form a sinusoidal periodic pattern in one dimension.
and then cooled them down with more laser light to just above absolute zero. The charged atoms can then be trapped using voltages applied to nearby metallic surfaces.
The magnetic insulator Shi and his team used was yttrium iron garnet grown by laser molecular beam epitaxy in his lab. The researchers placed a single-layer graphene sheet on an atomically smooth layer of yttrium iron garnet.
Paras Prasad, Phd, executive director of UB's Institute for Lasers, Photonics and Biophotonics (ILPB; and Guanying Chen, Phd, a researcher at ILPB and Harbin Institute of technology in China.
whether the crystalline structure of the materials is mismatched-lowering the manufacturing cost for a wide variety of semiconductor devices such as solar cells lasers and LEDS.
For example in photonic devices like solar cells lasers and LEDS the junction is where photons are converted into electrons or vice versa.
This manufacturing cost is a major reason why semiconductor devices such as solar cells lasers and LEDS remain very expensive.
or lasers-all of which are extremely expensive. Other conventional techniques use mechanical probes which are also costly.
#Breakthrough in flexible electronics enabled by inorganic-based laser lift off Flexible electronics have been touted as the next generation in electronics in various areas ranging from consumer electronics to bio-integrated medical devices.
A research team headed by Professor Keon Jae Lee of the Department of Materials science and engineering at KAIST provides an easier methodology to realize high performance flexible electronics by using the Inorganic-based Laser Lift off (ILLO.
The ILLO process involves depositing a laser-reactive exfoliation layer on rigid substrates and then fabricating ultrathin inorganic electronic devices e g. high density crossbar memristive memory on top of the exfoliation layer.
By laser irradiation through the back of the substrate only the ultrathin inorganic device layers are exfoliated from the substrate
as a result of the reaction between laser and exfoliation layer and then subsequently transferred onto any kind of receiver substrate such as plastic paper and even fabric.
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