Second-order nonlinear optical properties of highly symmetric chiral thin films

被引：61

作者：

Verbiest, T

Van Elshocht, S

Persoons, A

Nuckolls, C

Phillips, KE

Katz, TJ

机构：

[1] Katholieke Univ Leuven, Lab Chem & Biol Dynam, B-3001 Louvain, Belgium

[2] Columbia Univ, Dept Chem, New York, NY 10027 USA

来源：

LANGMUIR | 2001年 / 17卷 / 16期

关键词：

D O I：

10.1021/la010262u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate second-harmonic generation in highly symmetric thin films of chiral molecules. The films were prepared by spin-coating, and no external force (such as electric field poling) was used to induce noncentrosymmetry. The films have a nonpolar D-n symmetry with second-order susceptibility values of 2-9 pm/V. Furthermore, the samples are stable at elevated temperatures.

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页码：4685 / 4687

页数：3

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