Skip to main content
Nano Convergence
Figure 4 | Nano Convergence

Figure 4

From: A silicon nanowire photodetector using Au plasmonic nanoantennas

Figure 4

Absorption enhancement spectra for SiNW array coated with NPs. (a) Absorption enhancement spectra (simulation) of the SiNW arrays coated with NPs (20 nm for black, 30 nm for blue, and 40 nm for red). Inset shows a cross-sectional top-view of a unit cell for simulation in the x-y plane. kz represents a wave vector of the incident light and the electric-field is polarized along the x axis. (b-d) Distributions of the electric-field intensity in a unit cell of the array are shown for wavelengths of 490, 800, and 1000 nm in the x-y plane, respectively. Yellow arrows inside Au hNPs represent dipolar oscillations. (e) Absorption efficiency (Qabs) spectra of Au NP for a single Au NP-coated SiNW (A spherical PML: blue circle in inset).

Back to article page