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  1. Nature
    https://www.nature.com/articles/s41467-021-23488-z

    Polarity-dependent nonlinear optics of nanowires under ... - Nature

    • Surface-guided ZnO nanowires were grown by chemical vapour deposition (CVD) on R (1\(\bar{1}\)02) plane sapphire in a VLS mechanism from Au catalyst (see ‘Methods’). Surface-guided ZnO nanowires … See more

    Optical Determination of Nanowire Polarity

    In previous works, we showed that surface-guided ZnO nanowires on R-plane sapphire … See more

    Nature
    Polarity of Surface-Guided Nanowires

    We performed the same phase analysis on eighteen different nanowires. Results are presented in Table S1. SEM imaging with a secondary-electron detector was used to determine t… See more

    Nature
    Quantitative Analysis of Electric-Field-Modulated SHG

    We now try to better understand the EFM-SHG phenomenon by quantitatively analysing its scaling with the intensity of the applied electric field. The time trace of the SH signal (… See more

    Nature
    Local Polarity-Induced Assembly of Second-Order Nonlinear Optical ...
    After that, we mainly present our recent studies on the rational assembly of second-order NLO materials by the so-called strategy of “local polarity-induced assembly”, including: (1) making use …
    ACS Publications · https://pubs.acs.org/doi/10.1…
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    Table of Contents
    Optical Determination of Nanowire Polarity
    Polarity of Surface-Guided Nanowires
    Quantitative Analysis of Electric-Field-Modulated SHG
     
  1. ACS Publications
    https://pubs.acs.org/doi/10.1021/acs.accou…

    Local Polarity-Induced Assembly of Second-Order …

    Nov 21, 2022 · After that, we mainly present our recent studies on the rational assembly of second-order NLO materials by the so-called strategy of “local polarity-induced assembly”, including: (1) making use of the coordination …

  2. PNAS
    https://www.pnas.org/doi/full/10.1073/pnas...

    Unipolar assembly of zinc oxide rods manifesting polarity-driven

  3. ResearchGate
    https://www.researchgate.net/figure/A-CL-s…

    ( A ) CL spectra acquired from an O-polar and a Zn …

    The smooth tip assemblies grow only in the O-polar direction, whereas the sharp tip assemblies grow along the Zn-polar direction. The significance of the unipolar ZnO assemblies can be illu-...

  4. Wiley Online Library
    https://onlinelibrary.wiley.com/doi/10.1002/a…

    A Design Principle for Polar Assemblies with C3‐Sym …

    Oct 23, 2020 · Here, we report a rational strategy to form polar assemblies with bowl-shaped π-conjugated molecules and a molecular design principle for this …

    • Author: Cheng Zhang, Yuan Guo, Yuan Guo, Dan He, Jouji Komiya, Go Watanabe, Takuya Ogaki, Chengyuan Wang, At...
    • Publish Year: 2021
  5. People also ask
    Does a parallel polar axis increase or decrease a second-order nonlinear optical response?
    Here we report the observation of a related property in this series, where an external electric field applied parallel or anti-parallel to the polar axis of a crystal leads to an increase or decrease in its second-order nonlinear optical response, respectively.

    Polarity-dependent nonlinear optics of nanowires under ... - Nature

    nature.com
    Do all nanowires have the same polarity orientation?
    The former would result in all nanowires having the same polarity orientation with respect to growth direction, and thus opposite direction on the substrate (Fig. 1c top), while the latter would result in nanowires of opposite growth direction to have opposite polarity with respect to growth direction (Fig. 1c bottom).

    Polarity-dependent nonlinear optics of nanowires under ... - Nature

    nature.com
    What determines the second-order response of a non-centrosymmetric polar medium?
    In general, the second-order response of a non-centrosymmetric polar medium is determined by the second-order nonlinear susceptibility tensor χ(2) (as represented by the d-matrix of Eq. (2). The elements of this tensor are determined by the crystal symmetry, electronic structure and the wavelength.

    Polarity-dependent nonlinear optics of nanowires under ... - Nature

    nature.com
    What is second-order nonlinear optical (NLO)?
    Second-order nonlinear optical (NLO) materials, producing coherent light by the cascaded frequency conversion, are current hot topics in material chemistry and optics, as they play an important role in diverse fields, such as laser technology, precision measurements, and quantum information as well as future space propulsion.

    Local Polarity-Induced Assembly of Second-Order Nonlinear Optical

    pubs.acs.org
    How does molecular-level control work in epitaxial Assembly of block-copolymer films?
    In epitaxial assembly of block-copolymer films, molecular-level control over the precise size, shape and spacing of the ordered domains is achieved by specifying the volume fraction of each block and the length of the chains 19.

    Epitaxial self-assembly of block copolymers on ... - Nature

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  6. PubMed
    https://pubmed.ncbi.nlm.nih.gov/20643960

    Unipolar assembly of zinc oxide rods manifesting polarity-driven ...