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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. |
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. |
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. |
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. |
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. |
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 |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
IEEE Spectrum September 2011 Wanke & Lee |
Transceivers to Conquer the Terahertz Frontier New ICs harness the untamed terahertz band |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
IEEE Spectrum July 2007 Federici et al. |
T-Rays vs. Terrorists Terahertz radiation lets security screeners find bombs and weapons wherever they're hidden. |
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. |
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. |
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. |
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. |
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. |
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 |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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. |
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 |
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. |
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. |
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. |
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. |
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. |