News tagged with polarization

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Quantum dots provide complete control of photons

By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof ...

Jan 31, 2014
4.8 / 5 (16) 2 | with audio podcast

Imaging ferroelectric domains

(Phys.org) —When thin films of ferroelectric materials are grown on single-crystal substrates, they can develop regions of aligned polarization—called "domains"—that often adopt complex patterns. Manipulation ...

Jan 31, 2014
5 / 5 (2) 0 | with audio podcast

Polar bear diet changes as sea ice melts

A series of papers recently published by scientists at the American Museum of Natural History suggests that polar bears in the warming Arctic are turning to alternate food sources. As Arctic sea ice melts ...

Jan 22, 2014
4.7 / 5 (3) 0

Image: Polar vortex enters northern US

The polar vortex is a whirling and persistent large area of low pressure, found typically over both North and South poles. The northern polar vortex was pushing southward over western Wisconsin and eastern ...

Jan 07, 2014
4.7 / 5 (3) 0

Stopping molecules with a centrifuge

Does the electron possess an electric dipole moment? Will it be possible to achieve perfect control over chemical reactions between polyatomic molecules, or can one envisage quantum simulations and quantum ...

Jan 07, 2014
5 / 5 (4) 0 | with audio podcast

Knut the polar bear's medical legacy

Keeping wild animals is an important component of the mission of zoos to educate the public and preserve endangered species. When animals die, tracking the potential cause becomes an investigation of pathogens ...

Jan 03, 2014
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