Fig. 3 | Light: Science & Applications

Fig. 3

From: On-chip single-crystal plasmonic optoelectronics for efficient hot carrier collection and photovoltage detection

Fig. 3

Simulated field enhancement of the tunneling nanogap devices at different polarizations. a–d Contour plot of the calculated plasmonic field enhancement at 785 nm photon energy for PC and SC Au nanogaps with 0° and 90° polarization of the electrical field. The field enhancement ratio has been labeled in the plots. e Horizontal linecuts of the contour plots in (a–d), with the cut crossing the center of the nanogap

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