(PhysOrg.com) -- Silicon is an ideal platform for integrated photonic circuits because the material is cheap and readily available. Silicon chips with an integrated laser source capable of emitting light at a specific wavelength are particularly useful in telecommunications. Unfortunately, silicon is a material with high optical loss, which often degrades the output power and performance of the laser source.
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Feed SubscriptionInjectable Biomaterial Enables Tricky Facial-Injury Fixes, Extreme Body Mods
Surgically repairing delicate soft tissues like those on the face after an injury or illness is a tricky business. Surgeons can fix bones, joints and other body parts--but lips and cheeks simply aren't as repairable. But they soon may be, if a new material developed by medical researchers becomes commercially available.
Read More »Buildings And Vehicles That Pulse With "Blood"
How would you feel if parts of your home, your car, or the airliner you were flying in had blood flowing in artificial veins and arteries? Nicely chilled is the answer
Read More »Shining a light on the elusive ‘blackbody’ of energy research
A designer metamaterial has shown it can engineer emitted "blackbody" radiation with an efficiency beyond the natural limits imposed by the material's temperature, a team of researchers led by Boston College physicist Willie Padilla report in the current edition of Physical Review Letters.
Read More »Discovery in parent of one high-temperature superconductor may lead to predictive control
A team of scientists studying the parent compound of a cuprate (copper-oxide) superconductor has discovered a link between two different states, or phases, of that matter - and written a mathematical theory to describe the relationship.
Read More »New paper offers another approach to proof that dark matter exists
(PhysOrg.com) -- In yet another stab at trying to prove the existence of dark matter, Dan Hooper and colleagues have published a paper on arXiv describing what they believe to be credible evidence of the material believed to comprise most of the mass in the Universe. They say, according to a recent BBC post, that it could be that electrons are created when high energy dark matter particles crash into one another, giving rise to the synchrotron radiation that has thus far puzzled scientists here on Earth.
Read More »Why Dow Is Burning Plastic For Energy
Plastic doesn't have to end up in landfills or the ocean.
Read More »Should You Switch to Green Packaging?
Sometimes it's OK to litter. After unwrapping soap from Pangea Organics, a Boulder, Colorado-based maker of skin care products, customers are supposed to plant the packages in the ground.
Read More »Novel energy-band model for semiconducting spintronics material gallium manganese arsenide
(PhysOrg.com) -- The Fermi level position and band structure of gallium manganese arsenide has been determined for the first time, shedding light on the precise mechanism behind ferromagnetism in the material.
Read More »Data storage takes an electric turn
(PhysOrg.com) -- German scientists from the Forschungszentrum Julich and the Max Planck Institute of Microstructure Physics in Halle have discovered the basis for the next generation of memory devices. In a ferroelectric material, they have, for the first time, been able to observe directly how dipoles, which store the information in this material, continuously rotate and therefore may be organised in circular structures. The report was published in the journal Science
Read More »David Ferrucci on Watson, the Jeopardy Supercomputer
IBM Yorktown Heights, New York | Photograph by Reed Young David Ferrucci Principal Investigator - Watson Project, IBM Yorktown Heights, New York The principal investigator for IBM's DeepQA/Watson project, Ferrucci, 49, led the creation of the Jeopardy-playing robot, Watson.
Read More »Nanotech Advance Will Make Tranportation of Hydrogen Fuel Safer
As an eco-fuel, hydrogen has numerous advantages, including clean emissions. Storing hydrogen, however, has been proven difficult and dangerous--until now. The Department of Energy has achieved a nanotech breakthrough that will allow for the safe storage and transport of hydrogen
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