Want a microchip that operates 300 times the speed of chips today? Maybe some day.

Tiny, inexpensive silicon microchips developed by a pair of electrical engineers at the California Institute of Technology (Caltech) generate and radiate high-frequency electromagnetic waves, called terahertz (THz) waves, that fall into a largely untapped region of the electromagnetic spectrum—between microwaves and far-infrared radiation—and that can penetrate a host of materials without the ionizing damage of X-rays.

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