Photorefractive Properties of Undoped Chiral Smectic C Phases of Cyclopalladated Complexes
Photorefractive Properties of Undoped Chiral Smectic C Phases of Cyclopalladated Complexes
复制标题
环钯配合物未掺杂手性近晶C相的光折变性能
DOI：
10.1080/15421400590930764
复制
发表时间：
2005
影响因子：
0.7
通讯作者：
A. Golemme
中科院分区：
文献类型：
--
作者：
M. Talarico;R. Termine;P. Prus;Giovanna Barberio;D. Pucci;M. Ghedini;A. Golemme
摘要研究了环钯配合物形成的手性近晶C相的光折变性质。这些络合物没有掺杂光敏剂。在5.4V/µm的外加电场下，测得增益系数大于10 0 cm−1。测量了干涉条纹与折射率光栅之间的相移。利用以前发展的模型，估算了空间电荷场的幅度，结果表明，空间电荷场的幅度比常用的光折变无机晶体模型预测的要小得多。
ABSTRACT The photorefractive properties of chiral smectic C phases formed by cyclopalladated complexes were studied. The complexes were not doped with photosensitizers. A gain coefficient higher than 100 cm−1 at an applied field of 5.4 V/µm was measured. Measurements of phase shift between interference fringes and index grating were also performed. By using a previously developed model, the amplitude of the space-charge field was estimated and shown to be much smalled than what predicted by the commonly used model for photorefractive inorganic crystals.