News tagged with optical phase
Reversible doping: Hydrogen flips switch on vanadium oxide
If you are not a condensed matter physicist, vanadium oxide (VO2) may be the coolest material you've never heard of. It's a metal. It's an insulator. It's a window coating and an optical switch. And thanks ...
May 21, 2012 |
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Seeing sound: Team develops noninvasive method to visualise sound propagation
High-performance loudspeaker manufacturers have been able to improve sound quality dramatically over the years, but still face the issue of dead spots.
Nov 08, 2011 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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EU-funded project improves global data transmission
Researchers have developed two new components that could help Europe meet some of its most pressing communication challenges in optical amplifier research.
Sep 15, 2011 |
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Single molecule can shift the phase of a laser beam
(PhysOrg.com) -- The ability to control light forms the basis of many technologies, from microscopy to optical computing. Now, a team of scientists from ETH in Zurich, Switzerland, has demonstrated that a ...
Sep 06, 2011 |
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Vertical cavity quantum switch could lead us away from electronics-based computing
(PhysOrg.com) -- Right now, many researchers around the world are working on ways to move away from electronics-dominated computing systems. There are a number of ideas about how this can be accomplished. "We are trying to ...
Jun 30, 2011 |
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Squeezed light from single atoms
(PhysOrg.com) -- Max Planck Institute of Quantum Optics scientists generate amplitude-squeezed light fields using single atoms trapped inside optical cavities.
Jun 30, 2011 |
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Nature of bonding determines thermal conductivity
Optical data carriers such as DVDs, Blu-rays and CD-RWs store data in layers of so-called "phase change materials". In the future, these materials will enable the development of fast, non-volatile and energy-saving main memories. ...
May 03, 2011 |
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Magical BEANs: New nano-sized particles could provide mega-sized data storage
The ability of phase-change materials to readily and swiftly transition between different phases has made them valuable as a low-power source of non-volatile or “flash” memory and data storage. Now an entire ...
Sep 17, 2010 |
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Scientists develop device to enable improved global data transmission
Researchers have developed a new data transmission system that could substantially improve the transmission capacity and energy efficiency of the world's optical communication networks.
Sep 07, 2010 |
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Quantum dynamics of matter waves reveal exotic multibody collisions
At extremely low temperatures atoms can aggregate into so-called Bose Einstein condensates forming coherent laser-like matter waves. Due to interactions between the atoms fundamental quantum dynamics emerge ...
May 14, 2010 |
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Using quantum smoothing for optical phase estimation
(PhysOrg.com) -- "There are many situations where we need to measure the classical properties of a quantum system," Elanor Huntington tells PhysOrg.com. "Optical phase estimation is one of these techniques, and it is cen ...
Mar 11, 2010 |
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Nanoimaging in 3-D
(PhysOrg.com) -- As technology shrinks ever smaller, interest in objects and devices on the nanoscale becomes more apparent. However, visualizing these objects in three dimensions comes with special challenges. ...
Dec 01, 2009 |
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Exerting better control over matter waves
(PhysOrg.com) -- “The concept of matter waves is at the heart of quantum mechanics,” Oliver Morsch tells PhysOrg.com. “At the beginning of the last century, scientists discovered that solid particles could exhibit proper ...
Mar 27, 2009 |
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Fabricating 3D Photonic Crystals
(PhysOrg.com) -- “In photonic crystals, the ability to control the structure of a material in full three dimensional space, allows you to control the way that light flows through it,” John Rogers tells PhysOrg.com. “This ...
Jan 21, 2009 |
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