A new generation of high speed, silicon-based information technology has been brought a step closer by researchers in the Department of Electronic and Electrical Engineering at UCL and the London Centre for Nanotechnology. The team's research provides the first demonstration of an electrically driven, quantum dot laser grown directly on a silicon substrate with a wavelength suitable for use in telecommunications.
With the completion of a successful prototype, engineers at Oregon State University have made a major step toward addressing one of the leading problems in energy use around the world today - the waste of half or more of the energy produced by cars, factories and power plants.
In recent years, UC Santa Barbara scientists showed that they could reproduce a basic superconductor using Einstein's general theory of relativity. Now, using the same theory, they have demonstrated that the Josephson junction could be reproduced.
A team of scientists and engineers led by University of Illinois at Chicago engineering professor Christos Takoudis will use a $475,000 National Science Foundation grant to study ways of building nano-scale solid oxide fuel cells that operate efficiently at intermediate-range temperatures.
Two University of Pennsylvania engineers have proposed the possibility of two-dimensional metamaterials. These one-atom-thick metamaterials could be achieved by controlling the conductivity of sheets of graphene, which is a single layer of carbon atoms.
New research just published in the journal Science by a team of chemists at the University of Georgia and colleagues in Germany shows for the first time that a mechanism called tunneling control may drive chemical reactions in directions unexpected from traditional theories.
In a just-published work in the magazine Science, IBM researchers announced the first integrated circuit fabricated from wafer-size graphene, and demonstrated a broadband frequency mixer operating at frequencies up to 10 gigahertz.
The White House Emerging Technologies Interagency Policy Coordination Committee (ETIPC) has developed a set of principles specific to the regulation and oversight of applications of nanotechnology, to guide the development and implementation of policies at the agency level.
The U.S. Environmental Protection Agency announced today it plans to obtain information on nanoscale materials in pesticide products. Under the requirements of the law, EPA will gather information on what nanoscale materials are present in pesticide products to determine whether the registration of a pesticide may cause unreasonable adverse effects on the environment and human health. The proposed policy will be open for public comment.
Scientists around the world now have a new tool to investigate the elementary units of nature. Until now, the quantum wavefunction was believed to be impossible to measure directly, since the very act of observing it would alter it.