Slow-Light Silicon Chip Could Lead to Practical All-Optical Switches

Patricia Daukantas

A U.S.-based team has demonstrated the slowest light ever propagated on a single silicon chip.

 

Scatterings imageSilicon wafer with 32 atomic spectroscopy devices that can be used to create and control slow light on a chip. The wafer's diameter is roughly 4 inches or 10 cm.

A U.S.-based team has demonstrated the slowest light ever propagated on a single silicon chip. Most "slow-light" experiments have been performed under cryogenic or other extreme conditions, hardly an operating environment for practical photonic devices.

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