Permanent polarization gratings in photosensitive Langmuir–Blodgett films
Permanent polarization gratings in photosensitive Langmuir–Blodgett films
复制标题
光敏 Langmuir-Blodgett 薄膜中的永久偏振光栅
DOI：
10.1063/1.1308056
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
L. Blinov
中科院分区：
文献类型：
--
作者：
G. Cipparrone;A. Mazzulla;S. Palto;S. Yudin;L. Blinov
用两束正交圆偏振氩离子激光束研究了Langmuir-Blodgett薄膜中记录的薄永久相位偏振光栅。该薄膜由两亲性偶氮染料分子组成，具有极高的光致光学各向异性，Δn≈0.36。实验结果与基于琼斯矩阵表示偏振图的理论模型非常吻合。光栅至少在半年内是稳定的。
An investigation was carried out on thin permanent phase polarization gratings recorded in Langmuir–Blodgett films using two orthogonal circularly polarized Ar-ion laser beams. The films are composed of amphiphilic azo-dye molecules and manifest an extremely large value of photoinduced optical anisotropy, Δn≈0.36. The experimental results are in excellent accord with the theoretical model based on the Jones matrix representation of the polarization pattern. The gratings are stable at least, for half a year.