Title :
Thermal stability of NLO effects in polymers
Author_Institution :
Inst. for Electroacoust., Tech. Hochschule Darmstadt, Germany
Abstract :
Nonlinear optical (NLO) effects and their thermal stability in different polymers after corona or electron-beam poling are investigated by electro-optical coefficient measurement and by pyroelectric thermal analysis. Tested materials are a guest-host polymer of Disperse Red 1 (DR1) and polymethylmethacrylate (PMMA), a side-chain polymer of PMMA with DR1 side groups, a side-chain styrene-maleic anhydride co-polymer with DR1 side groups, and a cross-linked side-chain polymer Red-Acid Magly. The experimental results indicate that NLO effects in electron-beam poled samples are comparable with those in corona poled samples, while the thermal stability of the electron-beam poled materials is still low in the present stage. The reasons for the lower thermal stability of electron-beam poled samples and a possible way to overcome it are discussed
Keywords :
dielectric polarisation; electro-optical effects; electron beam effects; nonlinear optics; optical polymers; polymer blends; pyroelectricity; thermal analysis; thermal stability; Disperse Red 1; PMMA; Red-Acid Magly; corona poling; cross-linked side-chain polymer; electro-optical coefficient measurement; electron-beam poling; guest-host polymer; nonlinear optical effects; polymers; polymethylmethacrylate; pyroelectric thermal analysis; side-chain polymer; styrene-maleic anhydride co-polymer; thermal stability; Corona; Electrodes; Frequency conversion; Nonlinear optics; Optical films; Optical materials; Optical polymers; Optical waveguides; Polymer films; Thermal stability;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578120
