Journal
OPTICS LETTERS
Volume 37, Issue 2, Pages 121-123Publisher
Optica Publishing Group
DOI: 10.1364/OL.37.000121
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Funding
- Defense Advanced Research Projects Agency (DARPA)
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We exploit the properties of ultranarrow, Fano-like resonances generated by the coupling of long range surface plasmons with ultrathin (similar to 10 nm), metallic, subwavelength gratings embedded in a nonlinear, cubic material to obtain all-optical switching at telecommunication wavelengths for extremely low input power. We provide an example of a silver metallic grating embedded in a chalcogenide glass (As2S3), and we show the concrete possibility to achieve all-optical switching at local field intensities compatible with the photo-darkening threshold of the material. (C) 2012 Optical Society of America
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