Optical Fibers Made of Metamaterials Should Be Superfast
Metamaterials can be designed to interact with light in strange ways. By carefully structuring metal arrays at the nanoscale, for example, physicists can cloak an object from microwaves, or make superlenses that focus in on objects too small to be seen with conventional optics.
Now physicists have made designs for metamaterial optical fibers. Conventional optical fibers carry telecommunications data and are important components of some sensors and medical equipment. Fibers made up of metamaterials could carry light in ways that aren’t possible using naturally existing materials. According to research published online this week in Nano Letters, metamaterial fibers could guide both light and plasmons, surface energy waves induced by photons. Plasmonic fibers, say the paper’s authors, could do what optical fibers do, but much faster, speeding telecommunications and making for faster sensors. While conventional optical fibers are made up of layers of glass, the metamaterials proposed this week would be made up of nano-patterned aluminum oxide and silver. The designs were made by researchers at the University of California, San Diego, and the Institute for Integrative Nanosciences at IFW Dresden, Germany.

Keep Reading
Most Popular
DeepMind’s cofounder: Generative AI is just a phase. What’s next is interactive AI.
“This is a profound moment in the history of technology,” says Mustafa Suleyman.
What to know about this autumn’s covid vaccines
New variants will pose a challenge, but early signs suggest the shots will still boost antibody responses.
Human-plus-AI solutions mitigate security threats
With the right human oversight, emerging technologies like artificial intelligence can help keep business and customer data secure
Next slide, please: A brief history of the corporate presentation
From million-dollar slide shows to Steve Jobs’s introduction of the iPhone, a bit of show business never hurt plain old business.
Stay connected
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.