Electroabsorption in single-crystal film of a second-order optical material

被引：7

作者：

Swamy, RK ^{[1
]}

Kutty, SP ^{[1
]}

Titus, J ^{[1
]}

Khatavkar, S ^{[1
]}

Thakur, M ^{[1
]}

机构：

[1] Auburn Univ, Photon Mat Res Lab, Auburn, AL 36849 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1811772

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter, we report results of electroabsorption and resonant electro-optic measurements in single-crystal film of 4(')-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST). The electroabsorption measurement was made by recording the changes in transmission through the film as an ac field was applied along the dipole axis. The electro-optic measurement was made using the field-induced birefringence method. The measurements were made in the absorptive domain, at 633 and 488 nm. The modulation (DeltaT/T) due to electroabsorption decreased as the angle between the incident polarization and the dipole axis was increased. The observed electroabsorption is due to the imaginary part of the electro-optic coefficient. The real part of the electro-optic coefficient (r(11)) as measured at 633 nm is 770 pm/V. The imaginary parts of the electro-optic coefficients at 633 and 488 nm are 104 and 259 pm/V, respectively. (C) 2004 American Institute of Physics.

引用

页码：4025 / 4027

页数：3

共 9 条

[1] Electroabsorption of a new urethane-substituted polydiacetylene PDA-5BCMU-4A in a film [J].