Abstract

We propose a novel type of nanowire (NW)-induced nanocavity based on photonic crystal disks, and we investigate its design by three-dimensional finite-difference time-domain calculations. We detail the confinement principle used in such a cavity and discuss the influence of geometric and material parameters on the cavity performance. Finally, we report on an optimized design presenting a quality factor Q=7.2×104, a mode volume as small as Vm=2.2(λ/nrNW)3, and a large confinement factor of the electric field energy in the NW Γ=65%, which shows good prospects for the realization of efficient NW-based nanolasers operating in the ultraviolet and visible ranges.

© 2017 Optical Society of America

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