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Nano Lett. 2009 Dec;9(12):4505-9. doi: 10.1021/nl902850f.

Manipulating nanoscale light fields with the asymmetric bowtie nano-colorsorter.

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  • 1Molecular Foundry, Lawrence Berkeley National Lab, Berkeley, California 94720, USA.


We present a class of devices called Asymmetric Bowtie nano-Colorsorters. These devices are specifically engineered to not only capture and confine optical fields, but also to spectrally filter and steer them while maintaining nanoscale field distributions. We show that spectral properties and localized spatial mode distributions can be readily tuned by controlled asymmetry. Nano-Colorsorters can control light's spatial and spectral distributions at the nanoscale and thus significantly impact applications ranging from broadband light harvesting to ultrafast wavelength-selective photodetection.

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