Light-induced optical activity in optically ordered amorphous side-chain azobenzene containing polymer
Light-induced optical activity in optically ordered amorphous side-chain azobenzene containing polymer
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DOI：
10.1080/09500340008235096
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发表时间：
2000-04
影响因子：
1.3
通讯作者：
M. Ivanov;I. Naydenova;T. Todorov;L. Nikolova;T. Petrova;N. Tomova;V. Dragostinova
中科院分区：
文献类型：
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作者：
M. Ivanov;I. Naydenova;T. Todorov;L. Nikolova;T. Petrova;N. Tomova;V. Dragostinova
摘要我们报道了非晶侧链偶氮苯聚合物薄膜在圆偏振光照射下的圆双折射现象。只有在线性偏振光的帮助下在膜中预先创建光轴时才能观察到这种效果。光致旋光性被认为是由于聚合物结构的变化引起的，该变化是由从圆偏振光到偶氮苯发色团的圆动量转移引起的。
Abstract We report the appearance of circular birefringence (optical activity) in amorphous side-chain azobenzene polymer films on illumination with circularly polarized light. The effect is observed only if an optical axis is previously created in the film with the help of linearly polarized light. The photoinduced optical activity is believed to be due to changes in the polymer structure initiated by a circular momentum transfer from the circularly polarized light to the azobenzene chromophores.