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The Internet could one day get a speed boost from light-emitting polymers. An
optical 鈥渕odulator鈥� chip developed at the University of Southern California can
translate electrical data pulses into pulses of light at rates in excess of 100
gigabytes per second鈥攆ast enough to transfer a two-hour DVD movie in a
fifth of a second. The key was creating polymers in which the electric fields of
the molecules鈥� light-emitting regions do not interfere with each other鈥攁
problem that until now has slowed such chips down (Science, vol 288, p
119).