Octupolar films with significant second-harmonic generation

Mi Yun Jeong, Hwan Myung Kim, Seung Joon Jeon, Sophie Brasselet, Bong Rae Cho

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The structural and optical properties of 1,3,5-tricyano-2,4,6-tris(p- diethylaminostyryl)benzene/polymethylmethacrylate (TTB/PMMA) films were prepared by depositing a solution of TTB and PMMA in chlorobenzene on cleaned glass plates (BK7) of 1 mm thickness by using freecasting and spin-coating methods. The existence of crystalline domains in the free-cast film was demonstrated by X-ray diffraction (XRD) spectra. An incoming beam at 1064 nm (or 1560 nm) of linear polarization was used to illuminate a crystal domain in the free-cast film along the Z direction, while rotating the polarization angle, to determine the domain structure by using SHG polarized responses. It was observed that free-cast films have crystal domains that have hexagonal columnar structure and show significant SHG and high thermal stability.

Original languageEnglish
Pages (from-to)2107-2111
Number of pages5
JournalAdvanced Materials
Volume19
Issue number16
DOIs
Publication statusPublished - 2007 Aug 17

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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