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quantum News
Electron-Multiplying CCD for Lidar Applications
Aug 1, 2010 — Until recently, only photomultiplier tubes were suitable for low-light imaging. However, this technology and associated poor spatial resolution were not suited to scientific applications. Solid-state devices such as image intensifiers or electron-bombarded devices brought solutions to some key applications but have shown limitations such as poor modulation transfer function, low quantum efficiency or degradation at high light levels. But now, electron-multiplying amplification can be use...
Coherent, SiOnyx Partner to Develop Black Silicon
SANTA CLARA, Calif., May 5, 2010 — Coherent Inc. and SiOnyx Inc. announced they will partner to evaluate and develop SiOnyx's black silicon material for solar applications. Black silicon offers a number of advantages for the solar industry, including reduction of cost, an increase in...
UK, China Fund Spintronics Study
Jul 2, 2009 — A team of researchers from the University of Surrey and two other institutions have been awarded a grant of around £430,000 (about $704,000) to develop prototype ultrasmall-scale silicon structures for "spintronic" semiconductors. Jointly awarded by...
CLEO/IQEC to Feature Strong Market Focus
BALTIMORE, April 22, 2009 – More than 1200 technical presentations, 39 short courses, seven symposia, more than 100 prominent invited speakers, the PhAST Market Focus, a job fair and career workshop and 350 companies exhibiting at PhotonXpo are among the highlights of the...
Quantum communication, without – and with – delay
GAITHERSBURG, Md. – When it comes to computing, some of the lessons we learned in kindergarten really do apply. Algorithms have to take turns. Otherwise, final calculations could be wrong. Such data flow control is done routinely in standard computers. Now the...
Light Drives Nanomachines
NEW HAVEN, Conn., Nov. 26, 2008 -- By combining two emerging fields -- nanophotonics and nanomechanics -- researchers have shown that the force of light can be harnessed to drive machines at the nanoscale. Nanophotonics and nanomechanics make possible the extreme miniaturization...
Quantum Gases Made Visible
MAINZ, Germany, Oct. 22, 2008 – Scientists at the Johannes Gutenberg University Mainz have, for the first time, succeeded in rendering the spatial distribution of individual atoms in a Bose-Einstein condensate visible. Bose-Einstein condensates are small, ultracold gas clouds...
Show Bigger, Even Better
SAN JOSE, Calif., Oct. 22, 2008 -- Four renowned symposia featuring the presentations of 3275 research papers by the brightest minds in the photonics industry, 85 conferences, 75 courses, 1100 exhibitors and a special two-day Career Fair are expected to make SPIE Photonics West 2009...
Show to be Bigger, Even Better
SAN JOSE, Calif., Oct. 22, 2008 -- Four renowned symposia featuring the presentations of 3275 research papers by the brightest minds in the photonics industry, 85 conferences, 75 courses, 1100 exhibitors and a special two-day Career Fair are expected to make SPIE Photonics West 2009...
Sensor Peers into Electrons
CAMBRIDGE, Mass., Oct. 1, 2008 -- Physicists have exploited a special "flaw" in diamond crystals, manipulating them into monitoring magnetic signals from individual electrons and atomic nuclei and allowing scientists to spy on some of the universe's tiniest building blocks. The...
Physicists Get Genius Grants
CHICAGO, Sept. 23, 2008 -- An optical physicist who demonstrated that power can be transmitted wirelessly, a physicist who explores the mysterious behavior of quantum systems, and an astrophysicist working to improve the spatial resolution and precision of instruments used to...
'Squeezed Light' Record Set
HANOVER, Germany, Jan. 29, 2008 -- An extremely high-quality green laser beam has allowed a record number of photons to be placed in a specific order for use in gravitational wave detectors. Ordering the photons reduced fluctuations in the intensity of the light by 90 percent. This...
Radio Waves Cool Cantilever
BOULDER, Colo., Sept. 17, 2007 -- Physicists have used radio waves to dampen the motion of a thin silicon cantilever containing more than a quadrillion atoms, a cooling technique that has the potential to demonstrate quantum behavior in a macroscopic object using smaller and simpler...
New Zealand Invests in Tech
WELLINGTON, New Zealand, July 19, 2007 -- New Zealand is investing NZ$628 million (about $498 million) in new research programs in an effort to position the country at the forefront of nanotechnology development and the production of new supermaterials, a government funding agency announced...
Atomic Spectroscopy Achieved with Optics on a Chip
SANTA CRUZ, Calif., June 1, 2007 -- Atomic spectroscopy has been performed with integrated optics on a chip for the first time by guiding a beam of light through a rubidium vapor cell integrated into a semiconductor chip. Atomic spectroscopy is a widely used technique with diverse...
'Spinplasmonics' Field Created
EDMONTON, Alberta, May 31, 2007 -- By combining two nanotechnology fields -- spintronics and plasmonics -- researchers have found a novel way to control the quantum state of an electron's spin and created a new technology, "spinplasmonics." A University of Alberta research team...
Single-Photon Server Created From an Atom
GARCHING, Germany, March 19, 2007 -- Physicists have succeeded in turning a rubidium atom into a single-photon server, which could allow scientists to generate high-quality photons with consistent energy levels for use in quantum computing. Finding photons is easy: Every time you...
Optical Coating Reflects Virtually No Light
TROY, N.Y., March 1, 2007 -- Scientists have created an optical coating from a material that reflects virtually no light. The research could lead to the development of much brighter LEDs, more efficient solar cells and a new class of "smart" light sources that adjust to...
Rice Gets $1.4M to Probe Quantum Matter
HOUSTON, Feb. 12, 2007 -- The W.M. Keck Foundation has awarded Rice University $1.4 million to probe one of the most elusive and mysterious areas of modern physics -- the bizarre world of high-temperature superconductors, quantum magnets, and other solid-state materials that...
Light Changed to Matter, Then Stopped and Moved
CAMBRIDGE, Mass., Feb. 8, 2007 -- By converting light into matter and then back again, physicists have for the first time stopped a light pulse and then restarted it a small distance away. This "quantum mechanical magic trick" provides unprecedented control over light and could have...
Artificial Atoms Make Microwave Photons Countable
NEW HAVEN, Conn., Feb. 2, 2007 -- Using artificial atoms on a chip, physicists have taken the next step toward quantum computing by demonstrating that the particle nature of microwave photons can now be detected. Quantum theories are often considered to apply best to processes...
Awards Give Boost to UK Physics Research
SWINDON, England, Dec. 29, 2006 -- Seven Science and Innovation Awards totaling more than £12 million ($23 million) include funding to allow three United Kingdom universities to collaborate on quantum coherence and will help two other schools establish a new research center on...
Optical Atomic Clock Has Most Precise 'Ticks' Ever
BOULDER, Colo., Dec. 1, 2006 -- Using an ultrastable laser to manipulate strontium atoms trapped in a "lattice" of light, scientists at the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder have demonstrated the capability to produce...
'Tornadoes' Transferred From Light to Sodium Atoms
GAITHERSBURG, Md., Nov. 10, 2006 -- For the first time, tornado-like rotational motions have been transferred from laser light to atoms in a controlled way. The new quantum physics technique can be used to manipulate a state of matter called Bose-Einstein condensate (BEC) and possibly...
Molecule Camera Images Hydrogen
HEIDELBERG, Germany, Nov. 9, 2006 -- Using intensive, ultrashort laser pulses and compiling a film from the separate images, German researchers have "photographed" the smallest and fastest molecule -- hydrogen. The method allows them to visualize the quantum mechanical wave pattern of...
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April 2024
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