title: Polarization control in GaN nanowire lasers.
abstract: We demonstrate polarization control in optically-pumped single GaN nanowire lasers fabricated by a top-down method. By placing the GaN nanowires onto gold substrates, the naturally occurring randomly orientated elliptical polarization of nanowire lasers is converted to a linear polarization that is oriented parallel to the substrate surface. Confirmed by simulation results, this polarization control is attributed to a polarization-dependent loss induced by the gold substrate, which breaks the mode degeneracy of the nanowire and forms two orthogonally polarized modes with largely different cavity losses.
authors.forename: Huiwen
authors.initials: H
authors.lastname: Xu
authors.forename: Antonio
authors.initials: A
authors.lastname: Hurtado
authors.forename: Jeremy B
authors.initials: JB
authors.lastname: Wright
authors.forename: Changyi
authors.initials: C
authors.lastname: Li
authors.forename: Sheng
authors.initials: S
authors.lastname: Liu
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Figiel
authors.forename: Ting-Shan
authors.initials: TS
authors.lastname: Luk
authors.forename: Steven R J
authors.initials: SR
authors.lastname: Brueck
authors.forename: Igal
authors.initials: I
authors.lastname: Brener
authors.forename: Ganesh
authors.initials: G
authors.lastname: Balakrishnan
authors.forename: Qiming
authors.initials: Q
authors.lastname: Li
authors.forename: George T
authors.initials: GT
authors.lastname: Wang