期刊
OPTICAL MATERIALS
卷 60, 期 -, 页码 258-263出版社
ELSEVIER
DOI: 10.1016/j.optmat.2016.07.037
关键词
Azobenzene materials; Optical nonlinearities in organic materials; Second harmonic generation; Nonlinear optics; Optical properties of thin films; Second order susceptibility coefficients
资金
- Canadian Defense Academy Academic Research Program
- Natural Sciences and Engineering Research Council of Canada [RGPIN-2015-05743, RGPIN-2015-05485]
The second-order nonlinear optical coefficients of thin films of mexylaminotriazine-functionalized azobenzene molecular glass derivatives were measured using second harmonic generation. The thin films were poled using a custom corona poling set-up and the second harmonic light from a pulsed 1064-nm laser was detected. Four out of the six tested compounds showed optical nonlinearity and a maximum coefficient of 75 pm/V was obtained. The time dependence of the. nonlinear coefficients was studied under ambient light and under dark; the second harmonic generation intensity stayed constant for thiazole-containing derivatives while a significant decay was measured for the other compounds. (C) 2016 Elsevier B.V. All rights reserved.
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