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electromagnetic fields News
Nano whispering gallery reduces semiconductor emission lifetime
PHILADELPHIA – Applying the concept of whispering galleries to nanoscale devices drastically reduces emission lifetimes, a key property of light-emitting semiconductors, and shows great potential for the development of new ultrafast photonic devices. ...
Cold Atoms Image Microwave Fields
GARCHING, Germany, August 13, 2010 — Microwaves are an essential part of modern communication technology. Mobile phones and laptops, for example, are equipped with integrated microwave circuits for wireless communication. Sophisticated techniques for measurement and characterization of...
Great balls of magnetism!
Jul 1, 2010 — You’ve no doubt heard of ball lightning – perhaps even experienced it firsthand. But although the phenomenon has been known for millennia, it happens infrequently enough that there have always been doubts about its validity. Physicists...
Sensors on the Frontiers of Physics
Sep 1, 2009 — Computer chips based on light as opposed to electricity have only been theorized, but now researchers are actually developing computer chips that will use light for computer functions. At Yale University in New Haven, Conn., members of Hong...
Group Assails Project's EMFs
UPSTATE NEW YORK, Jan. 12, 2009 -- A coalition of seven counties and five citizens' groups has filed testimony with the New York Public Service Commission (NYPSC) saying that a proposed high-voltage transmission line will affect sensitive electronic devices such as electron...
Two Q-Switched Fiber Lasers Generate Terahertz Radiation
May 1, 2007 — Between the optical and radio-frequency wavelengths, there is that mysterious gap of terahertz radiation that has been widely ignored in the development of practical applications of electromagnetic fields. One of the reasons for the lack of...
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May 2024
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