Latest Transformation optics Stories

Flat Surface Turned Into Spherical Antenna Using New Device
2014-04-15 16:29:04

By Jason Bardi, American Institute of Physics Broadband transformational optics lens, described in Applied Physics Letters, may lead to antenna dishes that are flat or conform to any surface By depositing an array of tiny, metallic, U-shaped structures onto a dielectric material, a team of researchers in China has created a new artificial surface that can bend and focus electromagnetic waves the same way an antenna does. This breakthrough, which the team is calling the first...

2014-04-14 12:30:52

Broadband Transformational Optics Lens, Described in "Applied Physics Letters," May Lead to Antenna Dishes that are Flat or Conform to Any Surface WASHINGTON, April 14, 2014 /PRNewswire-USNewswire/ -- By depositing an array of tiny, metallic, U-shaped structures onto a dielectric material, a team of researchers in China has created a new artificial surface that can bend and focus electromagnetic waves the same way an antenna does....

2014-01-07 14:19:57

With the emergence of metamaterials and transformation optics in the past few years, invisibility has become a scientific possibility that has attracted sustainable research interest. Recently, a review paper, entitled "Invisibility cloak from forward design to inverse design", published in SCIENCE CHINA Information Sciences, 2013, Vol. 56, reviewed design methodologies and experimental developments of the invisibility cloak from a practical perspective. The recent transition from a forward...

Invisibility Cloak For Thermal Flow Constructed By Researchers
2013-05-08 15:09:27

Karlsruhe Institute of Technology By means of special metamaterials, light and sound can be passed around objects. KIT researchers now succeeded in demonstrating that the same materials can also be used to specifically influence the propagation of heat. A structured plate of copper and silicon conducts heat around a central area without the edge being affected. The results are presented in the Physical Review Letters journal. “For the thermal invisibility cloak, both materials...

Researcher Improving On Invisibility Cloak Concepts
2012-11-12 12:57:49

Michael Harper for redOrbit.com — Your Universe Online The idea of an invisibility cloak is an attractive one to the human psyche. The ability to be present when we´re thought to be absent is a juicy prospect. Not only could we finally find out what people say about us behind our backs, but we´d also be able to watch people without being detected, as well as play some of the world´s greatest pranks. Now, in the latest attempt to turn science fiction into science...

2012-05-08 11:31:35

A research team lead by Professor Martin Wegener at the Karlsruhe Institute of Technology (KIT) has succeeded in realizing a new material class through the manufacturing of a stable crystalline metafluid, a pentamode metamaterial. Using new nanostructuring methods, these materials can now be realized for the first time with any conceivable mechanical properties. The Rubicon was crossed, so to speak, at the DFG Center for Functional Nanostructures (CFN) and at the Institute of Applied...

2012-03-27 00:34:55

New 'thermal' approach to invisibility cloaking hides heat to enhance technology In a new approach to invisibility cloaking, a team of French researchers has proposed isolating or cloaking objects from sources of heat–essentially "thermal cloaking." This method, which the researchers describe in the Optical Society's (OSA) open-access journal Optics Express, taps into some of the same principles as optical cloaking and may lead to novel ways to control heat in electronics and, on an...

2011-06-09 23:45:38

Two University of Pennsylvania engineers have proposed the possibility of two-dimensional metamaterials. These one-atom- thick metamaterials could be achieved by controlling the conductivity of sheets of graphene, which is a single layer of carbon atoms. Professor Nader Engheta and graduate student Ashkan Vakil, both of the Department of Electrical and Systems Engineering in Penn's School of Engineering and Applied Science, published their theoretical research in the journal Science. The...

2011-05-19 09:39:31

CFN Scientists at KIT Achieve Optical Invisibility in the Visible Light Spectrum "Seeing something invisible with your own eyes is an exciting experience," say Joachim Fischer and Tolga Ergin. For about one year, both physicists and members of the team of Professor Martin Wegener at KIT's Center for Functional Nanostructures (CFN) have worked on refining the structure of the Karlsruhe invisibility cloak to such an extent that it is also effective in the visible spectral range. In invisibility...

Word of the Day
  • The offense of persistently instigating lawsuits, typically groundless ones.
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This word ultimately comes from the Old French word 'barater,' to cheat.