News tagged with free space
Retroreflector transmits light with negligible power consumption
(Phys.org) -- In free-space optical communications (FSO), data is wirelessly transmitted by light propagating through open space. Among their applications, FSO systems are used for communications between spacecraft ...
Apr 17, 2012 |
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Invisibility cloak that generates virtual images gets closer to realization
(PhysOrg.com) -- In a twist on the concept of an invisibility cloak, researchers have designed a material that not only makes an object invisible, but also generates one or more virtual images in its place. ...
Apr 02, 2010 |
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Quantum teleportation achieved over 16 km
(PhysOrg.com) -- Scientists in China have succeeded in teleporting information between photons further than ever before. They transported quantum information over a free space distance of 16 km (10 miles), ...
May 20, 2010 |
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Virtual education... for free
They don't offer degrees but then they don't charge tuition either.
Jul 31, 2009 |
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Scientists create first free-standing 3-D cloak
Researchers in the US have, for the first time, cloaked a three-dimensional object standing in free space, bringing the much-talked-about invisibility cloak one step closer to reality.
Jan 26, 2012 |
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Terminator-style info-vision takes step towards reality
The streaming of real-time information across your field of vision is a step closer to reality with the development of a prototype contact lens that could potentially provide the wearer with hands-free information ...
Nov 21, 2011 |
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Review: Using files made easy with online storage
(AP) -- Moving digital files between your work and home computers can be a pain. Add smartphones and tablet computers to the mix, and you've got yourself a giant headache.
May 03, 2012 |
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The interplay of dancing electrons
Negative ions play an important role in everything from how our bodies function to the structure of the universe. Scientists from the University of Gothenburg, Sweden, have now developed a new method that makes it possible ...
Nov 29, 2011 |
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Putting artificial atoms on the clock
Around the turn of the century, scientists began to understand that atoms have discrete energy levels. Within the field of quantum physics, this sparked the development of quantum optics in which light is ...
Nov 07, 2011 |
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Research continues on secure, mobile, quantum communications
Researcher Dr. David H. Hughes of the Air Force Research Laboratory in Rome, N.Y. is leading a team investigating long-distance, mobile optical links imperative for secure quantum communications capabilities in theater.
Oct 27, 2009 |
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Novel holographic antenna designs and uses
Holographic antennas first studied around 40 years ago are again a hot topic given the potential of holographic images for a variety of applications. EU researchers developed novel prototype devices based ...
May 30, 2012 |
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Cognitive radio helps guarantee reachability of emergency services
(PhysOrg.com) -- A new approach to wireless communication will guarantee the reachability of emergency services in a better way. 'Cognitive radio', for which Qiwei Zhang (CTIT) developed new techniques, borrows free space ...
Mar 02, 2009 |
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