摘要
报道了用溶胶凝胶技术制备掺入半花菁染料的二氧化硅薄膜.在不加电场极化条件下,由半花菁分子的自取向导致光学二次谐波产生,定量测得厚度为50nm薄膜的二阶非线性系数χ(2)为66pm/V。
Hemicyanine doped silica film was fabricated by the sol gel technique.It was demonstrated for the first time that the self alignment of hemicyanine molecules in the above film existed in the interfacial area.A χ (2) value of 6 6pm/V was obtained for a 50nm thick film.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第6期1125-1130,共6页
Acta Physica Sinica
基金
国家自然科学基金
上海市自然科学基金