Optical isolation: A non-magnetic approach
Nature Photonics 5, 517 (2011).
doi:10.1038/nphoton.2011.216
Authors: Zongfu Yu & Shanhui Fan
Going beyond the conventional approach based on the Faraday effect, scientists have now used acoustic modes optically excited in the core of a photonic crystal fibre to realize a reconfigurable all-optical isolator.
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