摘要
利用Cerenkov倍频辐射对极化聚合物薄膜在光漂白下二阶非线性效应的变化进行了研究。 实验表明光漂白能破坏有机聚合物中极化分子的取向稳定性,造成其二阶非线性效应衰减。实验测得漂白后交联型材料的二阶倍频信号衰减了28%,而侧链型材料则衰减了75%。
Second order nonlinear effect under photo-bleached polarized polymer thin film is studied by means of Cerenkov frequency-doubling radiation. Experiments show that photo-bleaching can damage the orientation stability of polarized molecules in organic polymer and cause its second order nonlinear effect to attenuate. After experimental bleaching a second order frequency-doubling signal of the cross-linked material has been attenuated for 28%, but the side chain material attenuated up to 75%.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2004年第2期28-30,共3页
Opto-Electronic Engineering
基金
国家自然科学基金(60237010)
上海市科技发展基金(011661084)
上海市应用材料研究与发展基金(0111)资助
关键词
极化聚合物薄膜
切伦科夫辐射
光漂白
非线性光学效应
Polarized polymer thin film
Cerenkov radiation
Photo-bleaching
Nonlinear optical effects
