STUDIES OF 3RD-ORDER NONLINEAR OPTICAL-PROPERTIES OF POLYAZINE AND ITS OLIGOMERS

被引：0
作者：
NALWA, HS
HAMADA, T
KAKUTA, A
MUKOH, A
机构：
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1993年 / 32卷 / 2A期
关键词：
POLYAZINE; OLIGOMERS; 3RD-ORDER NONLINEAR OPTICAL SUSCEPTIBILITY; 3RD-HARMONIC GENERATION; POLARIZABILITIES; ABINITIO CPHF;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The third-order nonlinear optical properties of a polyazine and its oligomers are reported for the first time. Third-harmonic generation measurements revealed a nonresonant third-order nonlinear optical susceptibility chi(3) (-3omega; omega, omega, omega) of 1.53 X 10(-12) esu for a pentamer and 8.0 X 10(-12) esu for propylmethylpolyazine at 1.5 mum. Dipole polarizability (alpha) and second hyperpolarizability (gamma) of oligomer model compounds were also calculated by employing the ab initio coupled-perturbed Hartee-Fock (CPHF) theory. Both polarizabilities and chi(3)(-3omega; omega, omega, omega) increase significantly as the length of pi-electron delocalization increases in the polyazine backbone.
引用
收藏
页码：L193 / L196
页数：4
相关论文
共 32 条
1234