Simulation of waveguiding and emitting properties of semiconductor nanowires with hexagonal or circular sections

Model for reflection and transmission matrices of nanowire end facets

“…We used around 220 waveguide modes to describe the field in the nanowire. The result coincide quite well with results reported earlier 4,5 , especially for the fundamental mode (HE 11 ). The reflection coefficient deviates slightly more for the TE 01 and TM 01 mode, especially for the TM 01 in the frequency regime where this mode has a very low confinement.…”

“…This value is close to refractive index of ZnO (2.33) 24 and GaN (2.60) 25 at room temperature. Such a nanowire has been studied previously by Maslov et al 4 and Henneghien et al 5 . ZnO and GaN have wide bandgaps, and will typically lase around 380 nm 22 and 375 nm 23 , respectively, at room temperature.…”

“…Various techniques can be used to accurately control the composition and geometry of the nanowires. Some work has been done to analyze the optical properties of semiconductor nanowires [4][5][6][7][8][9][10] , including modal properties, modal gain and optical emission. More knowledge is however needed to better understand and predict the optical response of the nanowires, in order to improve the nanowire devices.…”

“…The reflection properties of nanowires have been investigated by Maslov et al 4 and Henneghien et al 5 , using a 3d finite element method, and also by Hugonin et al…”

Nanowire Waveguides Launching Single Photons in a Gaussian Mode for Ideal Fiber Coupling

“…17 We now investigate the influence of the nanowire diameter on the spatial profile of the emission in the far field. First, we calculate the available guided modes in the nanostructure.…”