Second harmonic generation studies of polymer-stabilized cholesteric texture films

Andy Ying Guey Fuh, Chi Yen Huang, Cheuk Wah Lau

研究成果: Article

6 引文 斯高帕斯(Scopus)


Using a mode-locking Nd:YAG laser, we measured the second harmonic generation (SHG) of polymer-stabilized cholesteric texture (PSCT) films. The SHG observed in these samples is due to the dielectric gradient which arises from the interfaces between the cholesteric liquid crystal/polymer and those between the adjacent cholesteric focal conic domains having a different helical axis. Both the SHG intensities and the electro-optical characteristics of PSCT films were measured as a function of the polymer concentration. In addition, polymer network structures formed in PSCT films were investigated. Good correlations among the SHG measurements, electro-optical characteristics, and the polymer network morphologies were found. This means that SHG measurements could provide us with another qualitative, nondestructive method to analyze the PSCT films.

頁(從 - 到)2754-2759
期刊Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
發行號5 A
出版狀態Published - 1997 五月

All Science Journal Classification (ASJC) codes

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

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