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Figure 5 | Nanoscale Research Letters

Figure 5

From: Coupled nanowire-based hybrid plasmonic nanocavities on thin substrates

Figure 5

Quality factor and threshold gain of the fundamental hybrid mode versus cavity length. (a) Quality factor QFP and (b) threshold gain gth of the fundamental hybrid mode as a function of cavity length L for rGaN= 40, 50, and 60 nm on thick (t=500 nm) and thin substrates (t=5 nm). An increase in QFP of 20% for thin substrates is achievable at approximately L=4 μ m. The inset in (b) is the top view of the cavity with two end-facet coatings acting as reflectors.

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