Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (07): 589-593.doi: 10.3866/PKU.WHXB19960703

• ARTICLE • Previous Articles     Next Articles

Studies on Optical Nonlinear Anisotropy in Hemicyanine LB Multilayers

Han Kui,Xu Yong-Sheng,Ma Shi-Hong,Wang Guo-Yi,Luo Long-Gen,Lu Xing-Ze   

  1. Department of Physics,Fudan University,Shanghai 200433
  • Received:1995-11-28 Revised:1996-01-22 Published:1996-07-15
  • Contact: Lu Xing-Ze

Abstract:

 Polarized UV-Visible absorption and rotation-angle second harmonic generation (SHG) techniques were used to investigate the in-plane symmetry in Y-type Langmuir-Blodgett(LB) multilayers of a hemicyanine dye interleaved with inert material arachidic acid. Dipping-induced anisotropy of the molecular orientation with a unique reflection symmetry was enhanced with increasing the dipping speed.

Key words: Langmuir-Blodgett multilayer, Second harmonic generation, Anisotropy, Hemicyanine