Sep 01

UC Berkeley researchers tout world’s smallest semiconductor laser

Posted in: laser, science, Today's Chili
Scientists at the Norfolk State University may laid claim to a “world’s smallest laser” title just a few short weeks ago with the aid of some newfangled “spasers,” but it looks like the folks at UC Berkeley at hot on their heels with some tiny lasers of their own, and they’ve now announced what they claim to be the worlds smallest semiconductor laser. Unlike Norfolk State’s solution, the Berkeley researchers apparently relied primarily on standard semiconductor materials and fabrication technologies commonly used today, but devised a new means to squeeze the visible light into a 5 nanometer gap (about the size of a single protein molecule), while also using some newly-engineered “hybrid surface plasmons” to keep the light from dissipating as it moves along. That, the researchers say, represents nothing short of a “new milestone in laser physics,” and could pave the way for everything from new nanolasers that can probe, manipulate and characterize DNA molecules to new breakthroughs in computing that could see light replacing electronic circuitry “with a corresponding leap in speed and processing power.”

[Via DailyTech]

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UC Berkeley researchers tout world’s smallest semiconductor laser originally appeared on Engadget on Tue, 01 Sep 2009 17:30:00 EST. Please see our terms for use of feeds.

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Aug 17

World’s smallest laser cracks open the door to THz CPU race

Posted in: laser, nanotechnology, Today's Chili

So you thought 100nm was about as narrow as lasers could get, huh? Well think again brother, because scientists at Norfolk State University have now demonstrated a 44nm ‘spaser’ that performs a laser’s functions by the alternative means of surface plasmons. By using such an unorthodox technique, the researchers have been able to overcome the minimum size limitation to lasers, and they even claim spasers could be made as small as 1nm in diameter. Peeking into the (not too near) future, this could improve magnetic data storage beyond its current physical limits, and even lead to the development of optical computers that “can operate at hundreds of terahertz” — and here you were, thinking that your brand spanking new Core i7 system with Blu-ray was future-proof.

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World’s smallest laser cracks open the door to THz CPU race originally appeared on Engadget on Mon, 17 Aug 2009 05:49:00 EST. Please see our terms for use of feeds.

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Aug 14

Boeing’s Airborne Laser shines a light on a missile mid-flight, says ‘Hey, there!’

Posted in: laser, Today's Chili
Boeing's Airborne Laser shines a light on a missile mid-flight, doesn't blow it up
As fans of Real Genius, we’re as intrigued as you are by the concept of a flying laser the size (and shape) of a Boeing 747-400F, and have been tracking Boeing’s test-flights of its Airborne Laser platform quite closely. The jet is designed to intercept and destroy missiles mid-flight, and a recent test showed that it can manage that first bit — but it still hasn’t achieved the second. In a test on August 10, it tracked and fired upon an in-flight target that was packing sensors; the sensors confirmed the hit and so the test was successful, but for some reason Boeing opted to not crank it up to the gigawatts and knock the thing down. That test is apparently planned for a “lethal demonstration against a boosting threat-representative ballistic missile target” later this year, so until then this thing is little more effective than a multi-billion dollar Care Bear. Boeing, we dig that targets of this sort are probably not cheap, but get on with the program already, yeah?

[Via The Huntsville Times]

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Boeing’s Airborne Laser shines a light on a missile mid-flight, says ‘Hey, there!’ originally appeared on Engadget on Fri, 14 Aug 2009 10:58:00 EST. Please see our terms for use of feeds.

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Aug 05

Uber-nano nanolasers could lead to faster computers, reliable internet, neverending list of awesome things

Posted in: laser, nano, nanotechnology, science, Today's Chili
Researchers at Arizona State University and Technical University of Eindhoven in the Netherlands have been collaborating on a project to make lasers significantly smaller than the ones that are currently available, by finding a way around the traditionally accepted diffraction limit — the idea that the size of lasers in any one dimension (say, thickness) is limited to half of the wavelength involved. One way around the size limitation, they’ve found, is to use a combination of semiconductors and metals like gold and silver, which causes electron excitement which helps confine the light in a laser to smaller spaces than that of the supposed limit. Using this method, the team has created nanoscale lasers that are one quarter of the wavelength or smaller — as opposed to the previously accepted size limitation of one half of the wavelength. As far as consumer applications go, the smaller the laser, the easier it will be to integrate them into small electronics components, leading to things like faster products and more reliable internet access. Sounds great, right? Well, chill out: they’re still working on it, with no word on when we’ll see any street application of the nano nanolasers.

[Via Gizmag]

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Uber-nano nanolasers could lead to faster computers, reliable internet, neverending list of awesome things originally appeared on Engadget on Wed, 05 Aug 2009 18:42:00 EST. Please see our terms for use of feeds.

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Aug 04

Transparent aluminum! Would that be worth somethin’ to ya, eh?

Posted in: laser, research, science, space, Today's Chili, university

It’s hard to say if boffins at Oxford University got their inspiration from Nimoy and Co., but one thing’s for sure: they aren’t joking about the creation of transparent aluminum. In what can only be described as a breakthrough for the ages, a team of mad scientists across the way have created “a completely new state of matter nobody has seen before” by blasting aluminum walls (around one-inch thick) with brief pulses of soft X-ray light, each of which is “more powerful than the output of a power plant that provides electricity to a whole city.” For approximately 40 femtoseconds, an “invisible effect” is seen, giving the gurus hope that their experiment could lead to new studies in exotic states of matter. For a taste of exactly what we mean, feel free to voice command your PC to jump past the break. Or use the keyboard, if you’re feeling quaint.

Continue reading Transparent aluminum! Would that be worth somethin’ to ya, eh?

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Transparent aluminum! Would that be worth somethin’ to ya, eh? originally appeared on Engadget on Tue, 04 Aug 2009 01:44:00 EST. Please see our terms for use of feeds.

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Jul 23

Razer intros Orochi portable Bluetooth gaming mouse, fancy Kabuto surface

Posted in: bluetooth, laser, mouse, razer, Today's Chili

It’s been a few months since the reptile fanatics over at Razer dished out a new input peripheral, but the wait for yet another ends today with the introduction of the ambidextrous Orochi ($79.99; ships mid-August). Rather than shooting for the desktop gamer, the company is aiming squarely at the laptop crowd with its freshest portable Bluetooth laser mouse, which is the first to offer a 4,000dpi Razer Precision 3G laser sensor and dual-mode wired / wireless functionality. There’s also seven programmable buttons, Bluetooth 2.0 connectivity and on-board memory for setting up performance profiles. In related news, the outfit is also issuing a new gaming surface in the Razer Kabuto, an ultrathin, ultra-soft mat that’s probably nice, but not quite $19.99 nice.

Gallery: Razer intros Orochi portable Bluetooth gaming mouse, fancy Kabuto surface

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Razer intros Orochi portable Bluetooth gaming mouse, fancy Kabuto surface originally appeared on Engadget on Thu, 23 Jul 2009 14:11:00 EST. Please see our terms for use of feeds.

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Jul 20

Light Blue Optics’ touch-based laser projector hitting manufacturers in Q4 — will look nothing like this image

Posted in: laser, LED, pico projector, PicoProjector, projector, Today's Chili, uk

While the global economic crisis has swept aside a number of early innovators in mobile technology, Light Blue Optics finds itself flush with cash this morning. Having secured $15 million in funding, the UK outfit now plans to have its laser-based pico projection engine to OEMs by the end of the year; a move that should result in a tiny retail projector sometime in the first half of 2010. Why should you care? Well, unlike all those LED-based pico projectors now saturating the market, laser-based projectors offer more vivid colors and the ability to auto-focus that mobile image as it’s moved about. Even better, LBO has touch-enabled the system allowing users to interact with the projected display. A second generation engine about the size of a sugar cube will ultimately allow the technology to be embedded in mobile devices like cellphones as we’re already seeing with LED-based engines. Since the supplied image above totally misrepresents the first generation device, we’ve embedded a video of the tech, first published in March, after the break. Skip to the 3-minute mark if you want to avoid the pitch.

[Via PicoProjector-info]

Continue reading Light Blue Optics’ touch-based laser projector hitting manufacturers in Q4 — will look nothing like this image

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Light Blue Optics’ touch-based laser projector hitting manufacturers in Q4 — will look nothing like this image originally appeared on Engadget on Mon, 20 Jul 2009 03:09:00 EST. Please see our terms for use of feeds.

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Jul 18

Laser-equipped Virginia Tech dirt buggy can be driven by the blind

Posted in: car, laser, medical, Today's Chili, university

And you thought those self-driving whips in DARPA’s Urban Challenge were hot stuff. As the mighty Hokies look to prove their dominance in the field of engineering, a student team from Virginia Tech has assembled what amounts to a vehicle that can actually be driven by blind individuals. In short, the specially equipped dirt buggy is outfitted with an array of laser range finders, an instant voice command interface and a few other related systems that enable drivers to respond to whatever the vehicle “sees.” Best of all, the project is far beyond the drawing board, with a blind driver (Wes Majerus) already singing praises about the vehicle and deeming it a “liberating” experience. Regrettably, there’s no information on what the team plans to do with the vehicle going forward, but we do know it hopes to pass along the same technology to more street-legal motorcars.

[Thanks, Trisha]

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Laser-equipped Virginia Tech dirt buggy can be driven by the blind originally appeared on Engadget on Sat, 18 Jul 2009 06:29:00 EST. Please see our terms for use of feeds.

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Jul 17

Ford to swap out spark plugs for lasers, windshields for googly eyes

Posted in: car, Ford, laser, Today's Chili

Ah, yes… the future. Remember that? That magical land of flying cars, wearable chariots and Robot Apocalypse? Well, none of that has come to pass (yet!) but if researchers at Liverpool University have their way (and all indications are that they will) the next Ford you purchase will use a laser beam ignition system instead of spark plugs. According to The Telegraph (UK), lasers can be split into multiple beams and aimed at multiple ignition points, making the new system much more reliable. In addition, the engine’s cold weather performance is improved — and as the article points out, “this is the time when around 80 per cent of the exhaust emissions are produced and the engine is at is least efficient.” And if that weren’t enough, the laser system produces more stable combustion, using less fuel in the process. Consumers can expect to see this technology hit showrooms “within the next few years.”

[Via Auto Blog]

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Ford to swap out spark plugs for lasers, windshields for googly eyes originally appeared on Engadget on Fri, 17 Jul 2009 14:23:00 EST. Please see our terms for use of feeds.

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Jun 24

Sonic ‘laser’ developed, makes quite an impression at 80s night

Posted in: laser, Today's Chili

A researcher from the University of Nottingham and his Ukrainian colleague have built the world’s first Saser: a device that generates a highly concentrated beam of sound waves at terahertz frequency. Not unlike the frenetic warblings of Welsh chanteuse Bonnie Tyler, when alternating layers of aluminum arsenide and gallium arsenide are exposed to an intense beam of light, photons are released, causing them to bounce back and forth between the layers. Eventually the sound waves combine into much stronger, highly concentrated sounds in which every particle is synchronized — creating an ultra-high frequency “phonon” beam. Although practical applications for this technology have yet to be developed, it is hoped that Sasers could someday be used to probe and manipulate electronic devices at the nanoscale level, with results that include terahertz-frequency processors which would make the “computers of the future” a thousand times faster. Video after the break.

[Via Gizmag]

Continue reading Sonic ‘laser’ developed, makes quite an impression at 80s night

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Sonic ‘laser’ developed, makes quite an impression at 80s night originally appeared on Engadget on Wed, 24 Jun 2009 16:11:00 EST. Please see our terms for use of feeds.

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