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Possible evidence for dark matter particle presented at UCLA physics symposium

By Guest PostApril 5, 2014Sciencebrad hayes, brian scassellati, current technology, dark matter particle, david cline, electron volts, fertility hormones, germanium, ivf, los angeles, lux zeplin, NASA, prescribing, symposium, ucla, womans chances

Dark matter, the mysterious substance estimated to make up approximately more than one-quarter of the mass of the universe, is crucial to the formation of galaxies, stars and even life but has so far eluded direct observation.

At a recent UCLA symposium attended by 190 scientists from around the world, physicists presented several analyses that participants interpreted to imply the existence of a dark matter particle. (more…)

Infrared technology

By Guest PostAugust 18, 2013Sciencebreakthrough, energy wavelength, germanium, germanium tin alloys, group iv elements, group iv semiconductor, infrared spectrum, infrared technology, james kolodzey, jay prakash gupta, led, light emitting diode, nupur bhargava, optoelectronic devices, sangcheol kim, thomas adam, tin, university of delaware

UD-led breakthrough may advance development of mid-infrared light sources, lasers

A research group at the University of Delaware has achieved a breakthrough in the emerging field of “Group IV Semiconductor Optoelectronic Devices.”

The UD research team, led by James Kolodzey, demonstrated that it is possible to use a combination of germanium and tin (GeSn) to create a light emitting diode (LED) that operates in the infrared spectrum, wavelengths invisible to the naked eye. (more…)

Under Pressure: Germanium

By Guest PostApril 11, 2011Scienceatomic number, China, condensed matter, condensed matter theory, crystal structures, element, fiber optic systems, flowers, germanium, ho kwang mao, next generation computer architecture, phonons, pressure, series of phase transitions, superconductivity, vibrations, viktor struzhkin, xiao-jia chen

Washington, D.C. — Although its name may make many people think of flowers, the element germanium is part of a frequently studied group of elements, called IVa, which could have applications for next-generation computer architecture as well as implications for fundamental condensed matter physics.

New research conducted by Xiao-Jia Chen, Viktor Struzhkin, and Ho-kwang (Dave) Mao from Geophysical Laboratory at Carnegie Institution for Science, along with collaborators from China, reveals details of the element’s transitions under pressure. Their results show extraordinary agreement with the predictions of modern condensed matter theory. (more…)

Tag Archives: germanium

Possible evidence for dark matter particle presented at UCLA physics symposium

Infrared technology

Under Pressure: Germanium