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AndyTheAbsurd [soylentnews.org] writes:

I know what you're thinking after you read that title: If the wavelength is infinitely long, isn't a line rather than a wave?

In 2015, researchers, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) developed the first on-chip metamaterial with a refractive index of zero, meaning that the phase of light could be stretched infinitely long. The metamaterial represented a new method to manipulate light and was an important step forward for integrated photonic circuits, which use light rather than electrons to perform a wide variety of functions.

Now, SEAS researchers have pushed that technology further - developing a zero-index waveguide compatible with current silicon photonic technologies. In doing so, the team observed a physical phenomenon that is usually unobservable—a standing wave of light.

The research is published in ACS Photonics.

There's a lot more in the full story [phys.org] about the difficulties of proving the wavelength is infinite and what can be down with this new material with a refractive index of 0.

Original Submission