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Technology Research News
November 19, 2003
Liquid Crystal Tunes Fiber Researchers have combined photonic crystal and liquid crystal to make an optical fiber whose properties can change according to temperature. The combination allows the researchers to change the properties of the light inside the fiber. mark for My Articles similar articles
Technology Research News
March 24, 2004
Irregular layout sharpens light Aperiodic photonic crystal could improve devices that shape, detect and filter light, including communications devices like photodetectors, demultiplexers, which sort wavelengths of light, and channel drop filters, which filter out different wavelengths. mark for My Articles similar articles
Technology Research News
June 18, 2003
Eric Smalley
Chip sorts colors The simple concept of proportionality is the key to a significant advance in the emerging field of integrated optics -- chips that control light rather than electricity. mark for My Articles similar articles
Technology Research News
February 11, 2004
Eric Smalley
Light-storing chip charted Storing light, even briefly, was considered impossible until recently. Since scientists have proved it could be done, they've been finding different ways of accomplishing the feat. A proposal for slowing and stopping light in photonic crystal promises to bring these experiments to the chip level. mark for My Articles similar articles
Technology Research News
April 9, 2003
Chhavi Sachdev
Infrared headset nixes radiation Many cell-phone users have taken to using hands-free headsets to avoid the microwave radiation the devices emit, but the electrical wires that connect the headsets to the phones can also act as antennas for microwaves. A headset that connects via infrared light sidesteps the radiation problem. mark for My Articles similar articles
Technology Research News
July 28, 2004
Eric Smalley
Photonic chips go 3D Computer chips made from photonic crystal promise better communications equipment and ultrafast, all-optical computers mark for My Articles similar articles
Technology Research News
June 4, 2003
Eric Smalley
Shock waves tune light Researchers from the Massachusetts Institute of Technology have used a computer simulation to show that sending shock waves through photonic crystals could lead to faster and cheaper telecommunications devices, more efficient solar cells, and advances in quantum computing. mark for My Articles similar articles
Technology Research News
July 2, 2003
Tiny T splits light Researchers at the Swiss Federal Institute of Technology have designed a compact photonic crystal multiplexer that splits a lightwave into two slightly different colors. mark for My Articles similar articles
Technology Research News
April 6, 2005
Eric Smalley
Scheme Reverses Light Pulses Researchers have developed a method for accurately time-reversing electromagnetic pulses, making it possible to receive a light pulse and return a replica of exactly the same size, shape and wavelength. mark for My Articles similar articles
Technology Research News
June 29, 2005
Crystal promises more light Spontaneous emission from chip-based devices like light-emitting diodes can lower efficiency and create noise. Researchers have created a device that can harness the energy from the emissions and put them towards positive ends. mark for My Articles similar articles
Technology Research News
February 9, 2005
Lens design promises tight spots A new photonic crystal lens can focus near-field light to a spot one-quarter of the light's wavelength. The device can be used to make smaller, faster computer chips and memory. It could also be used in super-resolution microscopes. mark for My Articles similar articles
Technology Research News
September 8, 2004
Photonic Crystal Throttles Light Researchers have showed that the spacing of a photonic crystal can be used to control the timing of light emitted by a quantum dot. mark for My Articles similar articles
Technology Research News
November 3, 2004
Photonic Crystal Lasers Juiced Researchers have made a photonic crystal laser that is driven by electric current. The device could eventually be used as a source of single photons for quantum cryptography and communications devices. mark for My Articles similar articles
Technology Research News
August 27, 2003
Crystal shortens infrared waves Researchers from Sandia National Laboratories have found a way to make a tungsten photonic crystal emit 1.5 micron lightwaves, which are in the near-infrared, or heat range. This makes it useful for thermal photovoltaic devices, which turn heat into electricity. mark for My Articles similar articles
Reactive Reports
Issue 67
David Bradley
Attractive Changing Colors Chemists have discovered that a simple magnet can be used to change the color of nanoparticles of iron oxide in aqueous suspension. mark for My Articles similar articles
Technology Research News
November 19, 2003
Eric Smalley
Switch promises optical chips Computers have historically been electronic rather than photonic because lightwaves, while great for sending signals over long distances, are controlled by equipment that has proven difficult to shrink to computer chip scale. The rise of photonic crystals promises to narrow the gap. mark for My Articles similar articles
Technology Research News
November 17, 2004
Eric Smalley
Nanotubes Tune in Light Carbon nanotubes can act as antennas, but instead of transmitting and receiving radio waves, antennas of their size pick up the nanoscale wavelengths of visible light. mark for My Articles similar articles
IEEE Spectrum
September 2011
Wanke & Lee
Transceivers to Conquer the Terahertz Frontier New ICs harness the untamed terahertz band mark for My Articles similar articles
Wired
September 2000
Charles Platt
Bright Switch A tiny crystal full of holes is about to smash the electronic speed limit, and in the coming photonics era, superfast optical networking is only the beginning. mark for My Articles similar articles
Technology Research News
November 5, 2003
Eric Smalley
Crystal fiber goes distance Making fiber-optic lines that are hollow is one step toward more efficient telecommunications. Making lines that are full of holes goes further. Lots of regularly spaced holes bend light, which keeps it on the straight and narrow. mark for My Articles similar articles
Popular Mechanics
April 2010
David Hambling
New Magnetic Tech Could Help Coal Mine Rescue Workers Talk Underground At least 25 people died in an explosion at a West Virginia coal mine on Monday. A new magnetic communicator could help first responders contact victims in these underground disasters. Here's how the device works. mark for My Articles similar articles
Chemistry World
December 10, 2007
Killugudi Jayaraman
Scientists Trap Light in Nano-Soup Physicists in India, have demonstrated how to trap and retrieve light using a soup of micro- and nano-sized magnetic spheres. mark for My Articles similar articles
Technology Research News
June 1, 2005
Eric Smalley
Movie Captures Trapped Light Slow light, once better understood, could be used to improve devices like sensors and optical communications equipment. Researchers have moved the field forward with a way to directly observe the phenomenon. mark for My Articles similar articles
Chemistry World
July 13, 2007
Tom Westgate
Colourful Colloids A simple mixture of iron oxide, a polymer and water can take on any color simply by applying a magnetic field. mark for My Articles similar articles
Chemistry World
May 18, 2009
James Urquhart
Tailored colors for photonic crystals Korean and US scientists have permanently fixed the color of block copolymer photonic crystals by swelling photonic gels and 'freezing' them as they display the desired color. mark for My Articles similar articles
Chemistry World
January 28, 2008
Lewis Brindley
Colourful Crystals Monitor Humidity Chinese chemists have developed a material that changes color according to the humidity of the air around it. mark for My Articles similar articles
Technology Research News
October 22, 2003
Fiber handles powerful pulses Researchers from Cornell University and Corning, Inc. have shown that it's possible to preserve the shape, intensity and color of a very high-power light pulse as it travels through 200 meters of a fiber-optic cable. mark for My Articles similar articles
Chemistry World
November 17, 2014
James Urquhart
Beetle behind breath test for bank notes Simply breathing on money could soon reveal if it's the real deal or counterfeit thanks to a beetle-inspired ink that reversibly changes color in response to humidity. mark for My Articles similar articles
IEEE Spectrum
July 2007
Federici et al.
T-Rays vs. Terrorists Terahertz radiation lets security screeners find bombs and weapons wherever they're hidden. mark for My Articles similar articles
Technology Research News
June 16, 2004
Scheme Optimizes Light Chips Researchers have borrowed a design tool developed for mechanical engineering to improve the efficiency of nano-size optical waveguides. mark for My Articles similar articles
Chemistry World
December 17, 2007
Jonathan Edwards
A Simpler Way to Photonic Crystals Chinese scientists have found an easy way to make highly regular crystal structures from a polymer mixture. mark for My Articles similar articles
Chemistry World
September 28, 2012
Laura Howes
Tuning photonic crystals by blending brush polymers Bob Grubbs at the California Institute of Technology in the US, has previously made photonic crystals with brush block copolymers but this precise tuning of the wavelength of reflected light is new. mark for My Articles similar articles
Military & Aerospace Electronics
January 2008
Global Market for Photonic Crystals Set for High Growth Through 2013 The market segments are applications of light emission, information technology, optical sensing, energy conversion, light energy delivery, and other applications. mark for My Articles similar articles
Reactive Reports
December 2006
David Bradley
Biomolecules Out on a Wing Photonic crystals give butterflies their beautiful colors and synthetic versions are now being developed for a range of technological applications. mark for My Articles similar articles
IEEE Spectrum
September 2012
Carter M. Armstrong
The Truth About Terahertz Anyone hoping to exploit this promising region of the electromagnetic spectrum must confront its very daunting physics mark for My Articles similar articles
Geotimes
August 2007
Carolyn Gramling
Earth's Core is Solid, After All Seismic waves passing through Earth's center have long puzzled researchers, as some waves travel fast enough to indicate that Earth's inner core is solid iron-nickel crystals, but they do not travel quite as quickly as scientists would expect, based on studies of stiff iron alloys. mark for My Articles similar articles
PC Magazine
October 10, 2007
Anton Galang
Computing Sees the Light Imagine a CPU clocked at a few hundred terahertz. Physicists are close to making this happen. mark for My Articles similar articles
Technology Research News
April 9, 2003
Liquid crystals go 3D Researchers from Sheffield University in England and the University of Pennsylvania have unlocked some of the secrets of liquid crystals, materials that self-assemble into lattices of geometric shapes that are neither solid nor liquid, but somewhere between. mark for My Articles similar articles
Chemistry World
March 20, 2014
James Urquhart
Nanoparticle composites make colorful magnetic crystals Incorporating nanoparticles into single crystal materials can imbue them with new properties, such as color and magnetism, thanks to gel crystallization techniques developed independently by UK and Chinese research groups. mark for My Articles similar articles
Technology Research News
December 31, 2003
Colors expand neural net Researchers from the University of Tokyo have worked out a way to form an especially fast optical neural network by tapping the wave nature of lightwaves rather than just the amplitude, or strength of a signal. mark for My Articles similar articles
Reactive Reports
Issue 33
David Bradley
Two-faced Liquid Crystals A new class of programmable liquid crystals could be used to make variable optical filters for laboratory instrumentation and digital cameras; they might even be used to treat dyslexia. mark for My Articles similar articles
Technology Research News
March 9, 2005
Eric Smalley
Wire Guides Terahertz Waves Among the challenges to making terahertz sensing and imaging applications more practical is finding ways to direct the waves to specific targets. Researchers have now shown that a piece of stainless steel wire 9/10ths of a millimeter in diameter causes terahertz waves to propagate in the space around wire. mark for My Articles similar articles
Chemistry World
January 30, 2008
Jonathan Edwards
DNA Helps Nanoparticles Crystallize Two papers in Nature have each shown a simple way to build designer crystals from nanoparticles, using DNA as 'glue'. Both methods show promise as a cheap way of mass-producing complex materials like photonic crystals. mark for My Articles similar articles
Technology Research News
November 5, 2003
Eric Smalley
Crystal bends light back Being able to bend light backwards is extremely useful. This negative refraction is controversial in physics circles and has only been demonstrated using artificial materials containing metal loops. It turns out that a common natural crystal has harbored this capability all along. mark for My Articles similar articles
IEEE Spectrum
February 2012
Neil Savage
Nanostructures Catch the Light Razor-thin solar cells could be cheap but need a little help holding light in mark for My Articles similar articles
IEEE Spectrum
October 2005
Anna Basanskaya
Electricity Over Glass Photonic Power offers the option of measuring high currents by placing a transducer directly on the line, obviating the use of transformers to overcome voltage differences, as the power-over-fiber system converts electricity directly to light. mark for My Articles similar articles
Technology Research News
September 8, 2004
Pure Crystal Promises Hardy Chips Silicon carbide is hardier than than the plain silicon most computer chips are made from, and so theoretically could be a useful material for computer chips that must withstand extreme environments and high-power applications. mark for My Articles similar articles
The Motley Fool
August 5, 2010
Eric Wesoff
Can a Disruptive PV Technology Topple First Solar? We list a few candidates for a "new black swan improbable pyro-nano-quantum-thingamajig technology" to displace thin-film PV. mark for My Articles similar articles
Popular Mechanics
September 2009
5 Metamaterials That Make Matter Invisible, Silent or Blindingly Fast When nature can't supply raw ingredients for next-generation hardware, scientists create their own. mark for My Articles similar articles
Chemistry World
August 25, 2011
Fiona McKenzie
Poking Aspirin with a Sharp Stick Scientists have found a way to go one better than x-ray crystallography to examine pharmaceutical crystals at an even deeper level. mark for My Articles similar articles