Abstract
Hexagonal cylindrical InP nanowires with a wurtzite structure were fabricated by selective-area metalorganic vapor-phase epitaxy (SA-MOVPE). The microcavity modes and waveguides in InP nanowires were investigated by photoluminesence (PL) spectra. Optical mode analysis for InP nanowires with different lengths reveals the axial Fabry−Perot cavity in InP nanowires, which were formed between the two end facets of nanowires. In addition, T-branch subwavelength guiding and optical coupling in InP nanowires were observed.
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