Nanoparticle-Enhanced Photodetection

Howard R. Stuart and Dennis G. Hall, The Institute of Optics, University of Rochester, Rochester, N.Y.

A properly placed layer of metal nanoparticles can increase the optical absorption within a thin photodetector.1 Acting much like an array of microscopic antennas, the particles collect a fraction of the light that falls within their resonance bandwidth, coupling it into guided modes within the photodetector layer.

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