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Technology Research News April 6, 2005 |
Trapped Light Pulses Interact Researchers at Harvard University have showed that light pulses can be trapped and held in a rubidium vapor and made to interact with one another. The method could eventually be used in quantum cryptographic and quantum computing schemes. |
Technology Research News December 15, 2004 |
Light Writes Info Into Atoms Researchers have demonstrated that it is possible to transfer information encoded in the properties of photons to atoms. |
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 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 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. |
IEEE Spectrum December 2007 Neil Savage |
Slower Light for Faster Telecom Networks Promising research could yield better optical data storage. |
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. |
IEEE Spectrum August 2006 Alexander Hellemans |
Engineering Warms To Frozen Light Separate groups in the U.S. and Europe say that they have built and successfully tested more compact, rugged, and efficient means of delaying light pulses. Their work may clear the way for applications in optical switching and quantum communications. |
Technology Research News March 10, 2004 Eric Smalley |
X-shape pulses hold together A team of researchers in Italy and Lithuanian has found that under certain conditions a pulse of light can form an X shape that does not spread out. |
IEEE Spectrum February 2012 Miles et al. |
Using Lasers to Find Land Mines and IEDs A laser could ionize a distant puff of air and thus safely detect the fumes from buried explosives |
Scientific American September 2007 Marguerite Holloway |
What Visions in the Dark of Light Lene Vestergaard Hau made headlines by slowing light to below highway speed. Now the ringmaster of light can stop it, extinguish it and revive it and thereby give quantum information a new look. |
IEEE Spectrum August 2007 Saswato R. Das |
Scheme for a Single-Photon Transistor Researchers have taken a big step toward building a really fast computer that uses light rather than electricity to perform calculations. |
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. |
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 April 9, 2003 Eric Smalley |
Fiber loop makes quantum memory A relatively simple device that sends individual photons cycling through a fiber-optic loop could provide the memory needed to make ultra powerful computers that use the quantum states of light as bits. |
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. |
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. |
Wired October 23, 2007 Erin Biba |
Harvard Physicist Plays Magician With the Speed of Light Lene Vestergaard Hau can stop a pulse of light in midflight, start it up again at 0.13 miles per hour, and then make it appear in a completely different location. |
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. |
Chemistry World January 16, 2012 Kate McAlpine |
Stripped down spectroscopy to probe single molecules Spectroscopy, a key method of identifying atoms and molecules with light, has been taken to its most fundamental level - a single photon absorbed by a single molecule. |
IEEE Spectrum January 2009 Saswato Das |
Ion Teleportation Scheme Could Scale Up Quantum Computers Scientists have teleported the quantum state of one trapped ion onto another a meter away |
Technology Research News March 24, 2004 Kimberly Patch |
Pulse trap makes optical switch Scientists who work with light pulses so short that one trillion of them pass by in a second are laying the groundwork for higher bandwidth communications and blazingly-fast, all-optical computer chips. |
Technology Research News April 6, 2005 |
Optics Demo Does Quantum Logic Researchers from the University of Science and Technology of China and the University of Heidelberg in Germany have demonstrated a method of using four photons to form a logic gate that can be used for quantum computing. |
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 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. |
IEEE Spectrum December 2008 Saswato R. Das |
Physicists Invent a Chip That Stores a Photon's Quantum State A step toward the "quantum repeaters" needed to make long-distance quantum-cryptography networks |
Technology Research News November 3, 2004 Eric Smalley |
Single Field Shapes Quantum Bits Researchers have recently realized that it may be possible to control the electrons in a quantum computer using a single magnetic field rather than having to produce extremely small, precisely focused magnetic fields for each electron. |
Technology Research News June 2, 2004 Eric Smalley |
Atom-Photon Link Demoed Getting atoms and photons to exchange information is crucial for many quantum computer designs. The first verified atom-photon entanglement shows that it's not so hard to do, as long as you can accept a low success rate. |
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 February 25, 2004 Eric Smalley |
Simple optics make quantum relay Quantum cryptography devices and networks, which transport photons whose properties can be used to represent the 1s and 0s of digital information, could also benefit from repeaters. |
Chemistry World January 31, 2014 Philip Ball |
X-rays set to reveal electrons' dance In principle the very intense, ultra-short x-ray pulses produced by free-electron laser sources will be capable of revealing the motions of electrons in real time as they hop between different energy states in atoms and molecules. |
Technology Research News May 4, 2005 |
Noisy Snapshots Show Quantum Weirdness Researchers have devised a relatively simple way to detect a pair of entangled, or linked atoms. The detection ability advances quantum computer and quantum communications research. |
Chemistry World June 23, 2015 Matthew Gunther |
Photo-catalysts shine light on chemical bond making A team of scientists from Israel and Germany have manipulated bond formation in a chemical reaction using high power lasers |
Chemistry World December 6, 2006 Lionel Milgrom |
Surf's up for Unstable Electron Beams Controlling short high-energy bursts of plasma electrons is difficult. But now physicists in France have managed it, using a laser to inject electrons into the wake of a plasma wave created from a jet of helium gas. |
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 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. |
Scientific American April 18, 2005 Kauffmann & van den Bosch |
CT Scan for Molecules Producing 3-d images of electron orbitals. |
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. |
Chemistry World August 23, 2006 Simon Hadlington |
Laser Light Cast on Quantum Evolution Researchers have demonstrated for the first time why a technique called coherent control is able to break molecular bonds selectively using finely-tuned pulses of laser light. |
IEEE Spectrum May 2010 Neil Savage |
The Laser at 50 It's the golden anniversary of this fundamental technology |
Technology Research News April 6, 2005 |
Interference Scheme Sharpens Focus Researchers have found a way to improve the resolution of lithographic systems that could extend the lifetime of the manufacturing technique. Their proof-of-principal experiments show that the technique improves resolution by three times. |
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 September 22, 2004 Eric Smalley |
Bank Transfer Demos Quantum Crypto As quantum cryptography nears practical application, researchers are working on the next generation of the technology, which includes the weird quantum phenomenon of entanglement. |
IEEE Spectrum October 2005 Paniccia & Koehl |
The Silicon Solution In the future, ordinary silicon chips will move data using light rather than electrons, unleashing nearly limitless bandwidth and revolutionizing computing |
Technology Research News January 29, 2003 Eric Smalley |
Faster quantum crypto demoed Working out how to use only standard telecommunications gear to transmit cryptographic keys could dramatically improve quantum cryptography's paltry performance. |
BusinessWeek March 15, 2004 John Carey |
Physics: "Putting The Weirdness To Work" Scientists say quantum materials will be the basis for amazing devices, but when? |
Industrial Physicist Aug/Sep 2004 Eric J. Lerner |
News: Plasmon microscopy A new technique allows far-field optical microscopy with resolutions well below the wavelength of light. |
Technology Research News July 27, 2005 Eric Smalley |
Quantum crypto scheme doubly fast Researchers have found a way to double the speed of information transfer over quantum cryptography systems. |
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 June 2009 Saswato Das |
Two-Laser Lithography Shrinks Transistors A new microscopy technique gets adapted for chipmaking |