• DocumentCode
    1003354
  • Title

    Aromatic polyureas: a new class of nonlinear optical polymer with large second-harmonic generation

  • Author

    Nalwa, H.S. ; Watanabe, Toshio ; Kakuta, A. ; Mukoh, A. ; Miyata, S.

  • Author_Institution
    Hitachi Res. Lab., Hitach Ltd., Ibaraki, Japan
  • Volume
    28
  • Issue
    15
  • fYear
    1992
  • fDate
    7/16/1992 12:00:00 AM
  • Firstpage
    1409
  • Lastpage
    1411
  • Abstract
    The second-order nonlinear optical properties of aromatic polyureas are reported. From Maker fringe measurements, the nonlinear d33 coefficient of poled polyurea films with and without pendant chromophores was found to be 20*10-9 esu and 12*10-9 esu, respectively, at 1.064 mu m. Aromatic polyurea having no pendant chromophores shows a cutoff wavelength of transmission at 307 nm which is the first example of organic NLO materials to be optically transparent at such low wavelengths.
  • Keywords
    nonlinear optical susceptibility; optical harmonic generation; optical materials; polymers; visible spectra of organic molecules and substances; 1.064 micron; 307 nm; Maker fringe; aromatic polyureas; cutoff transmission wavelength; large second-harmonic generation; nonlinear optical polymer; optical transparency; pendant chromophores; poled polyurea films; second-order nonlinear optical properties;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19920896
  • Filename
    256043
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1003354