Nippon Telegraph and Telephone Corporation has developed an current-injection photonic-crystal laser with ultralow power consumption that can be applied to off-chip and on-chip optical data transmission for microprocessors.
Optics & Photonics
Feb 14, 2012
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Changes of seasonal cycles are important to social and economic activities, agricultural planning in particular. Qian et al. quantified changes in the timings of 24 seasonal divisions conventionally known in China as the ...
Environment
Jan 24, 2012
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An unusual solar flare observed by a NASA space observatory (video) on Tuesday could cause some disruptions to satellite communications and power on Earth over the next day or so, officials said.
Space Exploration
Jun 7, 2011
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(PhysOrg.com) -- There are very few places in the world where dynamic activity taking place beneath Earth's surface goes undetected.
Earth Sciences
May 26, 2009
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(PhysOrg.com) -- Researchers at Rensselaer Polytechnic Institute have developed and demonstrated a new type of light emitting diode (LED) with significantly improved lighting performance and energy efficiency.
General Physics
Jan 12, 2009
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