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In the eye of a chicken, a new state of matter comes into view

By Guest PostMarch 4, 2014Sciencearizona state university, chicken, crystal, density of particles, disordered hyperuniformity, eye, frank stillinger, joseph corbo, light waves, liquid, princeton university, remi dreyfus, salvatore torquato, state of matter, yang jiao

Along with eggs, soup and rubber toys, the list of the chicken’s most lasting legacies may eventually include advanced materials such as self-organizing colloids, or optics that can transmit light with the efficiency of a crystal and the flexibility of a liquid.

The unusual arrangement of cells in a chicken’s eye constitutes the first known biological occurrence of a potentially new state of matter known as “disordered hyperuniformity,” according to researchers from Princeton University and Washington University in St. Louis. Research in the past decade has shown that disordered hyperuniform materials have unique properties when it comes to transmitting and controlling light waves, the researchers report in the journal Physical Review E. (more…)

Exeter Physicist Bends Light Waves on Surfboards

By Guest PostJuly 31, 2012Scienceaerospace industry, electromagnetic radiation, invisibility cloaks, light waves, metamaterials, pseudo atoms

A University of Exeter scientist is bringing together his passions for Physics and surfing with research that could inspire a host of new technologies. Dr Matt Lockyear is using foam from inside surfboards to make materials that can manipulate light.

Scientists across the globe are trying to develop materials that can refract light to create ‘invisibility cloaks’, which are of particular interest to the aerospace industry. ‘Invisibility cloaking’ means building properties into a material that allow the device to guide light waves around an object, making it invisible. (more…)

Quantum Quirk: JILA Scientists Pack Atoms Together to Prevent Collisions in Atomic Clock

By Guest PostFebruary 7, 20111 commentScienceana maria rey, atom cloud, atomic clock, collisions between atoms, energy, energy levels, fermions, jila scientists, jun ye, laser beams, light waves, magnetic fields, microkelvin, neutral atoms, nist, optical tubes, paradox, particles, precision and accuracy, quantum world, strontium atoms, vertical lattice

In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms closer together. The surprising discovery, described in the Feb. 3 issue of Science Express, can boost the performance of experimental atomic clocks made of thousands or tens of thousands of neutral atoms trapped by intersecting laser beams

JILA is jointly operated by the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder. (more…)

Tag Archives: light waves

In the eye of a chicken, a new state of matter comes into view

Exeter Physicist Bends Light Waves on Surfboards

Quantum Quirk: JILA Scientists Pack Atoms Together to Prevent Collisions in Atomic Clock