Review Article

Plasmon-Enhanced Sensing: Current Status and Prospects

Figure 2

SEM images showing four different plasmonic nanodesigns. (a) SEM image of 1D nanogratings patterned on a silver film with 420 nm period and 110 nm slit-width. The inset illustrates the schematic cross section of the nanogratings on a glass substrate. (b) Top-view SEM image of a nanodisk array with 500 nm periodicity. The inset is the oblique view of the disks. (c) Top-view SEM image of a nanohole array. (d) Oblique view of nanomushrooms fabricated by interference lithography and thermal evaporation. Scale bars in (b) and (d) represent 300 nm and 200 nm, respectively. (a), (b), (c), (d) are successively adapted from [7679]. (a): Copyright 2014, American Institute of Physics. (b): Copyright 2014, Elsevier. (c): Copyright 2014, American Institute of Physics. (d): Copyright 2013, Nature Publishing Group.
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