title: Giant optical anisotropy of oblique-aligned ZnO nanowire arrays.
abstract: A combined method of modified oblique-angle deposition and hydrothermal growth was adopted to grow an optically anisotropic nanomaterial based on single crystalline ZnO nanowire arrays (NWAs) with highly oblique angles (75°-85°), exhibiting giant in-plane birefringence and optical polarization degree in emission. The in-plane birefringence of oblique-aligned ZnO NWAs is almost one order of magnitude higher than that of natural quartz. The strong optical anisotropy in emission due to the optical confinement was observed. The oblique-aligned NWAs not only allow important technological applications in passive photonic components but also benefit the development of the optoelectronic devices in polarized light sensing and emission.
authors.affiliation: Institute of Photonics and Optoelectronics, & Department of Electrical Engineering, National Taiwan University, Taipei, 10617, Taiwan.
authors.forename: Cheng-Ying
authors.initials: CY
authors.lastname: Chen
authors.forename: Jun-Han
authors.initials: JH
authors.lastname: Huang
authors.forename: Kun-Yu
authors.initials: KY
authors.lastname: Lai
authors.forename: Yi-Jun
authors.initials: YJ
authors.lastname: Jen
authors.forename: Chuan-Pu
authors.initials: CP
authors.lastname: Liu
authors.forename: Jr-Hau
authors.initials: JH
authors.lastname: He
mesh_terms: D016880:Anisotropy; D001718:Birefringence; D008027:Light; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D015034:Zinc Oxide