Figure 2.

Absorption enhancement by nano-block and nano-cylinder. (a) Absorption enhancement by nano-blocks as a function of wavelength; (b) absorption enhancement by nano-cylinders; (c) electric field distribution shows that the metallic nano-cylinder (nano-block has similar effect) particle has a significant effect on trapping light underneath it (incident wavelength at 650 nm).

Tang and Vlahovic Nanoscale Research Letters 2013 8:65   doi:10.1186/1556-276X-8-65
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