News tagged with light switches
Researchers use light to switch on gene expression
Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...
May 10, 2012 |
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Two stopped light pulses interact with each other
(Phys.org) -- For the first time, physicists have experimentally demonstrated the interaction of two motionless light pulses. Because the stopped light pulses have a long interaction time, it increases the ...
May 08, 2012 |
4.1 / 5 (16) |
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UK scientists develop optimum piezoelectric energy harvesters
Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters.
Mar 02, 2012 |
4.4 / 5 (7) |
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Optogenetics -- Combination switch turns neurons on and off
(PhysOrg.com) -- Flies that display courtship behaviour at the press of a button, worms made to wriggle by remote control: since the dawn of optogenetics, scientists can turn nerve cells on and off using pulses ...
Dec 23, 2011 |
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Single molecule can shift the phase of a laser beam
(PhysOrg.com) -- The ability to control light forms the basis of many technologies, from microscopy to optical computing. Now, a team of scientists from ETH in Zurich, Switzerland, has demonstrated that a ...
Sep 06, 2011 |
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Researchers demonstrate an electrochromic nanoplasmonic optical switch
In a recent article in Nano Letters, CNST researchers describe a new high-contrast, low operating-voltage, electrochemical optical switch that uses a volume of active dye orders-of-magnitude smaller than that of conventional electr ...
Sep 01, 2011 |
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NC State develops more precise genetic 'off switches'
Researchers at North Carolina State University have found a way to "cage" genetic off switches in such a way that they can be activated when exposed to UV light. Their technology gives scientists a more precise way to control ...
Oct 28, 2010 |
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An Internet 100 times as fast: A new network design could boost capacity
(PhysOrg.com) -- The heart of the Internet is a network of high-capacity optical fibers that spans continents. But while optical signals transmit information much more efficiently than electrical signals, ...
Technology / Computer Sciences
Jun 28, 2010 |
4.7 / 5 (54) |
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New on-off 'switch' triggers and reverses paralysis in animals with a beam of light (w/ Video)
In an advance with overtones of Star Trek phasers and other sci-fi ray guns, scientists in Canada are reporting development of an internal on-off "switch" that paralyzes animals when exposed to a beam of ultraviolet ...
Nov 18, 2009 |
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Researchers program cells to be remote-controlled by light
(PhysOrg.com) -- UCSF researchers have genetically encoded mouse cells to respond to light, creating cells that can be trained to follow a light beam or stop on command like microscopic robots.
Sep 14, 2009 |
4.5 / 5 (2) |
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Presto! Fast color-changing material may lead to more powerful computers (w/Video)
(PhysOrg.com) -- Researchers in Japan are reporting development of a new so-called "photochromic" material that changes color thousands of times faster than conventional materials when exposed to light.
Apr 23, 2009 |
4.4 / 5 (18) |
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