All optically induced Χ(2) structures and their optical anisotropy in betaine dispersed in polymer matrix

Naoto Tsutsumi, Masanori Imamura, Wataru Sakai, Yu Nagase, Nobukatsu Nemoto, Yanqing Tian, Jiro Abe

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper is concerned with the noncentrosymmetric alignment of betaine molecules dispersed in a polymeric matrix by an all-optical poling process. Two types of betaine molecules were used: one is betaine-azo with an azobenzene moiety in the molecule and the other is betaine-C8 without an azobenzene moiety in the molecule. The effect of the azobenzene moiety in the molecule on the optical poling efficiency, the formation of Χ(2) structure, and its thermal stability was studied. Optical anisotropy of the Χ(2) tensor components formed in the matrix in the writing process with linearly polarized beams was evaluated by rotating a sample film or rotating the polarization direction of the fundamental reading beam.

Original languageEnglish (US)
Pages (from-to)5247-5253
Number of pages7
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number8
StatePublished - Aug 2002
Externally publishedYes


  • Betaine compounds
  • Optical poling
  • The effect of azobenzene moiety on SHG activity
  • Χ structure
  • Χ tensor components

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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