laser fits on a chip
electronics gave us computers, and lasers-on-a-chip
gave us high-speed telecommunications. Moving
clouds of atoms around the surface of a chip
opens the door for another technology revolution.
Dashing off a quick email message sure is convenient
but it may not be as easy as it seems. Getting an
idea across to your co-worker by email takes more
cognitive effort than telling it to him face-to-face.
computers drive big display
Tie together a bunch of computer processors and
you can get a lot done, including turning huge scientific
data files into readily understandable images.
control data beams
Filling a room with pulses of infrared light is
one way to set up a wireless network, but bouncing
light beams off the walls makes for poor reception.
Scattering the infrared beams through a hologram
clears up the picture.
produces smaller circuits
Chip makers are under pressure to make faster computer
chips. Forcing tiny pieces of metal into microscopic
cracks could be the answer.