Similar Articles

Browse Main Topics:

Business
Computers & Electronics
Education & Reference
Entertainment & Leisure
Family & Home
Finance & Investment
Health
Internet
Pets & Animals
Science & Technology
Society, Politics & Culture
Sports & Recreation

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.
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 1, 2005	Lasers Built Into Fiber-Optics Researchers have crossed a gas-filled fiber optic laser with ordinary fiber optics to make a Raman laser and a frequency stabilizer -- devices that provide precise control of laser beams.
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 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 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 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 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 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.
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.
National Defense October 2009 Grace V. Jean	The Promise of the World's Smallest Lasers Recent advances in power efficiency, design and high temperature functionality have pushed ultra-thin semiconductor lasers closer to real-world utility.
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 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 March 10, 2004	Atom spouts photons on demand California Institute of Technology researchers have fashioned a single atom into a light source that generates single photons on demand.
Technology Research News February 11, 2004	Magnets tune photonic crystal Researchers from Fudan University in China have found that it is possible to use a magnetic field to quickly shift or block certain frequencies of electromagnetic signals passing through photonic crystals made from semiconductor material.
IEEE Spectrum March 2010 Richard Stevenson	Lasers Get the Green Light Compact green-light sources could slash the cost of laser TV
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.
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 September 24, 2003 Eric Smalley	Laser made from single atom The simplest possible laser -- a single atom -- has been on the drawing board for decades. Researchers have finally achieved the extremely precise control needed to make a laser from just one atom. The first demonstration of a single-atom laser showed that it's a different animal -- it produces quantum light.
Technology Research News December 1, 2004 Eric Smalley	Pure Silicon Laser Debuts Researchers have made a prototype laser from silicon. The laser is tunable, meaning it can lase in a range of wavelengths, or colors, and it works at room temperature.
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.
IEEE Spectrum February 2006 Holonyak & Feng	The Transistor Laser Ultrafast transistors that output optical and electrical signals open a new computing frontier.
Technology Research News June 16, 2004	Laser Tweezer Grabs Varied Specks Researchers have advanced the use of optical tweezers with a method that allows them to simultaneously trap and independently manipulate microscopic materials that have different indices of refraction.
Scientific American August 2005 Steven Ashley	Making Light of Silicon Scientists at UCLA and Intel have obtained coherent photons of light from silicon. This low cost alternative to "exotic" semiconductor materials currently used as lasers will pave the way for many technological advances.
Technology Research News November 5, 2003	Rig fires more photon pairs Massachusetts Institute of Technology researchers have moved the field of quantum communications forward with entangled photon beams that contain specific wavelengths of light and are relatively bright.
IEEE Spectrum January 2009 Jean Kumagai	Winner: Quantum Leap Quantum-dot lasers from Japan's QD Laser will make high-speed "fiber to the home" networks simpler, cheaper, and more power-efficient
Technology Research News October 6, 2004	Crystal structure tunes nanowires A new process that controls the crystal structure of nanowires made from specific semiconductors may enable electronic components, such as light-emitting diodes and laser diodes, with tunable properties.
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.
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
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.
Military & Aerospace Electronics October 2004	Fiber lasers emerge as strong competitor for future laser weapons They may be applied to jet fighters, land vehicles, and perhaps even man-portable systems. And they even have the potential to edge-out other solid-state laser approaches such as slab lasers and free-electron lasers.
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.
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 March 9, 2005	Silicon Chip Laser Goes Continuous Useful lasers made from silicon would make it possible to move data between and within computer chips using light rather than electricity. This would make for faster chips that could be more tightly integrated with optical communications equipment.
IEEE Spectrum October 2005 Salvatore Coffa	Light From Silicon For decades, silicon was a semiconducting dim bulb, but now we can make it into LEDs that match the best made from more exotic materials
Technology Research News January 28, 2004	Technique detects quantum state Researchers from the University of Rome in Italy have pushed theorized "perfect" quantum cryptography schemes forward by demonstrating a method for detecting quantum entanglement among subatomic particles.
Technology Research News December 19, 2005	Quantum computing: qubits Quantum bits, or qubits, are the quantum equivalent of the transistors that make up today's computers. There are four established qubit candidates: ion traps, quantum dots, semiconductor impurities, and superconducting circuits.
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 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.
Technology Research News December 31, 2003 Eric Smalley	Light frozen in place Researchers at Harvard University have trapped and held a light pulse still for a few hundredths of a millisecond.
Technology Research News February 9, 2005	All-silicon chip laser demoed Researchers from Intel have moved a step forward in the push to meld lasers and silicon chips, which could eventually be used in portable biological and chemical sensors, to amplify communications signals, and to convert light to different wavelengths.
Technology Research News October 8, 2003 Kimberly Patch	Crystal slows and speeds light Playing tricks with light -- speeding, slowing and storing it -- is becoming a popular pastime among physicists. The effects could eventually be used to improve communications and data storage and help bring about quantum computing and quantum communications.
Technology Research News April 21, 2004 Eric Smalley	Optical Quantum Memory Designed Quantum computers that use photons rather than atoms or electrons are appealing because the equipment needed to handle them can be relatively simple. A scheme for trapping photons in fiber-optic loops and replacing the photons that the loops absorb could be the answer.
Technology Research News October 20, 2004 Eric Smalley	Wide laser makes simple tweezers Much of medical diagnostics and biomedical research involves trapping, manipulating and sorting individual cells and like-sized bits of matter. A recently demonstrated way of manipulating cells promises to be less expensive than laser tweezers.
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 December 1, 2004	Demo Advances Quantum Networking Researchers have transferred information stored in the properties of a cloud of rubidium atoms to the properties of a single photon. The ability to transfer information from atoms to photons is needed for quantum computers.
Technology Research News April 6, 2005	System Forms Light Necklace Researchers who are working with soliton clusters have come a step closer to all-optical computing. They have showed that it is possible to contain a lightwave as a soliton necklace -- a standing wave of light arranged as a ring of bright spots.
PC Magazine March 14, 2007 Lance Ulanoff	Gearlog: A Laser That's Not for Pointing In case you missed the memo, real lasers are now for sale on the Web.
IEEE Spectrum May 2010 Neil Savage	The Laser at 50 It's the golden anniversary of this fundamental technology
Military & Aerospace Electronics May 2006	Raytheon researchers eye boosting laser power to weapons-grade levels High-power laser systems made from low-power modules would leapfrog bottlenecks to create ever-higher-power monolithic laser systems.