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. 2017 Feb 16;7:42667. doi: 10.1038/srep42667

Figure 4. Fabricated plasmonic nano-antenna array.

Figure 4

Scanning electron microscope image of a plasmonic nano-antenna array fabricated on a LT-GaAs substrate with a nano-antenna length of 2 μm and tip-to-tip gap size of 500 nm.