title: Polarization tunable, multicolor emission from core-shell photonic III-V semiconductor nanowires.
abstract: We demonstrate luminescence from both the core and the shell of III-V semiconductor photonic nanowires by coupling them to plasmonic silver nanoparticles. This demonstration paves the way for increasing the quantum efficiency of large surface area nanowire light emitters. The relative emission intensity from the core and the shell is tuned by varying the polarization of the excitation source since their polarization response can be independently controlled. Independent control on emission wavelength and polarization dependence of emission from core-shell nanowire heterostructures opens up opportunities that have not yet been imagined for nanoscale polarization sensitive, wavelength-selective, or multicolor photonic devices based on single nanowires or nanowire arrays.
authors.affiliation: Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, A. C. T. 0200, Australia. sudha.mokkapati@anu.edu.au
authors.forename: Sudha
authors.initials: S
authors.lastname: Mokkapati
authors.forename: Dhruv
authors.initials: D
authors.lastname: Saxena
authors.forename: Nian
authors.initials: N
authors.lastname: Jiang
authors.forename: Patrick
authors.initials: P
authors.lastname: Parkinson
authors.forename: Jennifer
authors.initials: J
authors.lastname: Wong-Leung
authors.forename: Qiang
authors.initials: Q
authors.lastname: Gao
authors.forename: Hark Hoe
authors.initials: HH
authors.lastname: Tan
authors.forename: Chennupati
authors.initials: C
authors.lastname: Jagadish