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Search results for birefringent

General Âé¶¹ÒùÔºics Aug 1, 2017

Magnon circular birefringence—polarization rotation of spin waves and its applications

An international team of researchers from Thailand, the U.S. and Japan has conducted a thorough study of an exotic behavior of material called a noncentrosymmetric antiferromagnet. The team, monitoring the behavior of the ...

Optics & Photonics Jul 26, 2017

Rail-like waveguides simplify miniaturizing photonic components on silicon wafers

High-speed optical circuits and sensors generally require strict control over light polarization to minimize loss and cross-talk in photonic devices such as waveguides. An A*STAR team now predicts that noise resulting from ...

Materials Science Jul 19, 2017

High-tech sensing illuminates concrete stress testing

Using the principles of light, University of Leeds scientists have discovered a new way to measure the strength of modern forms of concrete - giving industry a better way to understand when it could fracture.

Optics & Photonics Jul 7, 2017

Helically twisted photonic crystal fibres

Photonic crystal fibres (PCF) are strands of glass, not much thicker than a human hair, with a lattice of hollow channels running along the fibre. If they are continuously twisted in their production, they resemble a multi-helix. ...

Materials Science Jun 9, 2017

Chemists develop hydrogel strings using compound found in sea creatures

Rice University chemists can thank the mussel for putting the muscle into their new macroscale scaffold fibers.

Optics & Photonics May 12, 2017

One laser is enough

Gases in the environment can be spectroscopically probed fast and precisely using so-called dual frequency combs. Researchers at ETH have now developed a method by which such frequency combs can be created much more simply ...

Condensed Matter May 9, 2017

Scientists solve 400-year-old mystery of Prince Rupert's drops

(Âé¶¹ÒùÔº)—Researchers have finally answered a question that has stumped scientists since the early 1600s: Why are the heads of tadpole-shaped pieces of glass called "Prince Rupert's drops" so strong?

Optics & Photonics Mar 10, 2017

Âé¶¹ÒùÔºicists predict the existence of unusual optical composites

Âé¶¹ÒùÔºicists from MIPT have predicted the existence of transparent composite media with unusual optical properties. Using graphics card-based simulations, scientists studied regular volume structures composed of two dielectrics ...

Optics & Photonics Feb 24, 2017

Researchers develop surprising technique for ultrashort laser pulses

Pulse lasers built entirely on optical fibers are increasingly used by industry. Optical scientists from the Warsaw Laser Centre of the Institute of Âé¶¹ÒùÔºical Chemistry of the Polish Academy of Sciences and the Faculty of ...

Astronomy Nov 30, 2016

First signs of weird quantum property of empty space?

By studying the light emitted from an extraordinarily dense and strongly magnetized neutron star using ESO's Very Large Telescope, astronomers may have found the first observational indications of a strange quantum effect, ...

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