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Posts tagged “optics

Physicists show ‘molecules’ made of light may be possible

Physicists show 'molecules' made of light may be possible

It’s not lightsaber time… at least not yet. But a team including theoretical physicists from the National Institute of Standards and Technology (NIST) has taken another step toward building objects out of photons, and the findings* hint that weightless particles of light can be joined into a sort of “molecule” with its own peculiar force.

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A glass fiber that brings light to a standstill

Using atoms to slow light

Atoms coupled to a glass fiber: A system that can slow down light dramatically.
Image credit goes to: TU Wien

Light is an extremely useful tool for quantum communication, but it has one major disadvantage: it usually travels at the speed of light and cannot be kept in place. A team of scientists at the Vienna University of Technology has now demonstrated that this problem can be solved – not only in strange, unusual quantum systems, but in the glass fiber networks we are already using today.

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