Newswise — Terahertz radiation holds a lot of promise for chemical identification and noninvasive imaging in industry, medicine, and security. But that portion of the electromagnetic spectrum, which ranges from the highest frequency radio waves to the lowest frequency infrared light, has proved to be hard to use. Over the decades, engineers have made many attempts to create compact, solid-state devices that can harness it, with limited success.
Now we finally have compact, bright solid-state sources of terahertz radiation. This feature documents how these sources were developed and how they can be combined with other circuit components to create integrated circuit terahertz transceivers--devices that can simultaneously emit and detect terahertz radiation. These devices are proof that terahertz signals can be handled in a small, portable, mass-producible package. For the first time, we can begin to imagine a a bright future for terahertz technology, one full of innovation.
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