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Keyword: infraredlight

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  • Graphene emits infrared light

    04/25/2012 11:44:33 PM PDT · by neverdem · 10 replies
    physicsworld.com ^ | Apr 25, 2012 | Belle Dumé
    Physicists in the US have discovered yet another useful property of the wonder material graphene – it can function much like a laser when excited with very short femtosecond light pulses. The team has shown that the material has two technologically important properties – population inversion of electrons and optical gain. The findings suggest that graphene could be used to make a variety of optoelectronics devices, including broadband optical amplifiers, high-speed modulators, and absorbers for telecommunications and ultrafast lasers. Graphene is a sheet of carbon atoms arranged in a honeycomb-like lattice just one atom thick. Since its discovery in 2004,...
  • Virginia Commonwealth University participates in Earth Hour, turns out the lights

    03/26/2010 8:56:15 AM PDT · by mbarker12474 · 25 replies · 590+ views
    VCU Virginia Commonwealth University ^ | 26 March 2010 | VCU Virginia Commonwealth University
    Virginia Commonwealth University VCU Dining Services Earth Hour Event: On Saturday, March 27, at 8:30 p.m. Shafer Court Dining Center and Jonah’s will take part in Earth Hour — the world’s largest climate change event. By simply turning out all nonessential lighting for one hour, Dining Services will join tens of millions of concerned citizens through...out the world in calling for action to save the planet. The locations will remain open, but with limited lighting during this hour. For more information about the VCU event, contact tmhighsmith@vcu.edu.
  • Astronomy Picture of the Day 8-14-02

    08/13/2002 9:33:07 PM PDT · by mtngrl@vrwc · 13 replies · 241+ views
    NASA ^ | 8-13-02 | Robert Nemiroff & Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 August 14 Giant Emission Nebula NGC 3603 in Infrared Credit: 2MASS Project, UMass, IPAC/Caltech, NSF, NASA Explanation: NGC 3603 is the largest region of glowing gas in our Milky Way galaxy. Spanning over 20 light years across, the giant emission nebula (HII region) is home to a massive star cluster, thick dust pillars, and a star about to explode. NGC 3603 was captured above in infrared light...