Welcome to the electromagnetic dark zone.
But some researchers are slowly making progress. If they stick the landing, they might open up a whole new suite of technologies, like the successor to Wi-Fi or a smarter detection system for skin cancer.Look at the terahertz gap as a borderland. On the left side, there are microwaves and longer radio waves. On the right side lies the infrared spectrum. Our eyes can’t see infrared, but as far as our technologies are concerned, it’s just like light.
The rest of the terahertz gap is shrouded in mist. Researchers like Hu are trying to fix this, but it isn’t easy.When it comes to tapping into terahertz waves, the world of electronics faces a fundamental problem. To enter the gap, the silicon chips in our electronics need to pulsate quickly—at trillions of cycles per second . The chips in your phone or computer can operate perfectly well at millions or billions cycles per second, but they struggle to reach the trillions.
, a physicist at the University of California, Santa Barbara’s Terahertz Facility. “It’s still relatively rare, but I would say, much, much, much more common … and much easier.”
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