Figure 4: Pixel size dependence of the cavity LSP and SPP mode of the PMC-QWIP.
From: Pixel-level plasmonic microcavity infrared photodetector
(a) Cross-sectional view of the PMC-QWIP illuminated by TM-polarized light. (b) SEM image of the PMC-QWIP with a pixel size of w = 200 μm. The period and strip width are fixed at 10 and 5.9 μm, respectively. (c) Normalized responsivity enhancement spectra with different pixel size w. The inset shows the SPP mode peak values as a function of w. The right-hand panel is for the distributions of 
of the SPP and LSP modes.
