Figure 2 | Scientific Reports

Figure 2

From: Plasmonic field confinement for separate absorption-multiplication in InGaAs nanopillar avalanche photodiodes

Figure 2

Electrical and optical characterization.

(a) Measured dark current and photocurrent at room temperature of an APD with a 40 μm X 40 μm active area. The extracted multiplication gain approaches 100. (b) Reflectance spectrum and spectral photoresponse exhibit a minimum and maximum, respectively, at 1060 nm. (c) Photogeneration within the nanopillar at a plasmonic resonance and (d) off resonance.

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