In a major breakthrough, scientists control light propagation in photonic chips

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Researchers at Columbia Engineering School have built optical nanostructures that enable them to engineer the index of refraction and fully control light dispersion. They have shown that it is possible for light (electromagnetic waves) to propagate from point A to point B without accumulating any phase, spreading through the artificial medium as if the medium is completely missing in space

Physicists describe how to make time-reversed light pulses

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(PhysOrg.com) -- By taking advantage of the properties of periodic systems, physicists have described how to efficiently time-reverse ultrashort electromagnetic pulses.

Titanium oxide doped with cobalt produces magnetic properties at room temperature

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(PhysOrg.com) -- Spintronics — also known as magnetoelectronics — may replace electronics as the medium of choice for computer memory. The discovery of a mechanism that produces permanent magnets at room temperature, without any external influence, may soon improve the design of spintronic devices. Takumi Ohtsuki from the RIKEN SPring-8 Center, Harima and his colleagues in Japan, made the discovery in a class of material called a dilute ferromagnetic oxide.

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In a major breakthrough, scientists control light propagation in photonic chips

Physicists describe how to make time-reversed light pulses

Titanium oxide doped with cobalt produces magnetic properties at room temperature

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