【摘要】 采用LB膜技术制备了液晶/花生酸混合膜,利用表面等离极化激元(SPP)技术对液晶单分子膜电光效应进行了研究,其结果表明:在电场作用下液晶/花生酸混合膜的SPP谱的共振峰变窄,共振角的位置也发生变化,即电场作用使得单分子膜的介电常数发生变化,单分子膜的这种电光效应与电场的频率无关.更多还原

【Abstract】 In this paper,we have reported the experimental results of electro - optic effect in liquid crystal monomolecular film obtained by surface plasma polariton(SPP) technique. The SPP was detected by kretschmann lens mode, the resonant spectra of SPP is closely related not only to dielectri thickness and constant at near gold film, but also very sensitive to their change. These results studied by SPP technique on liquid/peanut acid composite on gold film psepared via LB technique have shown that the resonant peak of SPP spectra in liquid/peanut acid composite film under action of electric field become narrower, the position of its resonant angle also changes.This means that the dielectric constant of monomolecular film was changed by electric field, but its electro - optic effect is indenpent of field frequency.更多还原