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sees behind objects
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A
computer program that lets a camera see from
the point of view of a light source promises
to simplify Hollywood special effects and
is another step toward the Star Trek holodeck.
It also performs a nifty magic trick.
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Movie
captures trapped light
A high-speed microscope makes movies of a chip punched
with holes in the act of trapping a light pulse.
The trap slows a light pulse to a thousand times
below the speed of light. The information gained
promises to improve sensors and telecommunications.
Speedy
photon detector debuts
A speedy single photon detector combines quantum
dots and a special type of diode to sense single
photons more quickly and accurately than existing
techniques. The device promises tightened computer
security, finer medical imaging, and speedier fiber
optics.
How It Works
Computer
displays: points of light
There are many ways to make spots of light. To work
in computer displays, the spots need to be small,
fast and bright.
Briefs
Going
nano boosts thermoelectrics
Nanoscale materials promise efficient devices that
generate electricity from heat and refrigerate without
moving parts.
Magnetic
resonance goes nano
The technology in magnetic resonance imaging systems
has been used to make simple prototype quantum computers.
A chip-scale device could take the computers to
another level.
Lasers
built into fiber-optics
Fiber-optic lines filled with gas pave the way for
smaller, more efficient telecommunications and global
positioning system devices.
Nano
LEDs made easier
Get a couple of laser beams to interfere with each
other, throw in a little atomic-scale sandblasting,
and you have a relatively simple way to make nanoscale
lights.
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