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Plasmonics

A shifting perspective

Wavelength converters typically rely on inefficient nonlinear light–matter interactions or electro–optic effects. Researchers in the USA have now demonstrated a low-power and broadband all-optical wavelength shifter, which has the potential to fit on a single optical chip.

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Figure 1: Schematic of a mixed-type QW.

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Pacifici, D. A shifting perspective. Nature Photon 1, 689–690 (2007). https://doi.org/10.1038/nphoton.2007.238

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