(urth) Fuligin technology on the way
James Wynn
crushtv at gmail.com
Mon Aug 2 12:54:31 PDT 2010
http://www.newscientist.com/article/mg20727720.101-antilaser-traps-all-incoming-light.html?DCMP=OTC-rss&nsref=online-news
'Anti-laser' Traps All Incoming Light"
"Call it the anti-laser. Instead of amplifying light, it would soak it
up completely, leaving utter darkness."
[snip]
"A paper-thin slice of silicon would normally absorb about 20 per cent
of the incoming light, but the team showed that in this set-up it would
cancel nearly all of the light at 945 nanometres, in the near infrared.
So far the effect exists only on paper, but team member Douglas Stone
says "ongoing experiments are extremely promising, and I have total
confidence it can be realised". The energy from the cancelled beams is
converted into heat, but if it could somehow be turned into current, the
effect could allow pulses in fibre-optic cables to be converted with
high efficiency into electrical signals."
u+16b9
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