News tagged with optical emission

Nanocrystal infrared LEDs can be made cheaply

( -- Light-emitting diodes at infrared wavelengths are the magic behind such things as night vision and optical communications, including the streaming data that comes through Netflix. Cornell researchers have advanced ...

dateMay 10, 2012 in Nanomaterials
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Astronomers detect coolest radio star

( -- Astronomers using the world's largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous ...

dateApr 18, 2012 in Astronomy
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A cosmic exclamation point

( -- VV 340, also known as Arp 302, provides a textbook example of colliding galaxies seen in the early stages of their interaction. The edge-on galaxy near the top of the image is VV 340 North and the face-on ...

dateAug 12, 2011 in Astronomy
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Image: Black Hole Blows Big Bubble

This composite image shows a powerful microquasar produced by a black hole in the outskirts of the nearby (12.7 million light years) galaxy NGC 7793. The large image contains data from the Chandra X-ray Observatory in red, ...

dateJul 12, 2010 in Space Exploration
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New laser -- it's a gas, gas, gas... sensor

( -- A new generation of optical sensors is enabling the development of robust, long-lasting, lighting-fast trace gas detectors for use in a wide range of industrial, security and domestic applications.

dateDec 04, 2009 in Engineering
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