| 학회 |
한국고분자학회 |
| 학술대회 |
2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 |
30권 1호, p.486 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Study on the dynamics of grating formation in polymeric photorefractive materials. |
| 초록 |
Photorefractivity(PR), which refers to the spatial modulation of the refractive index of material under the illumination of the nonuniform light, is based on the combined effects of photoconductivity and electro-optic property. Due to their unique features such as photosensitivity, reversibility and beam amplification, the polymeric PR polymers have been considered as promising materials in the fields of optical data storage and information processing. Yet, characterization of the temporal dynamics in polymeric PR material is not an easy task. First of all, the growth of the space-charge field is a complicated function of various photoelectric rates that in most cases cannot be described with a single exponential. Second, the convolution of the space- charge field dynamics with noninstantaneous chromophore orientational response to yield the overall PR response speed further complicates the matter. For this reason, we studied for speed of PR formation according to both space-charge field dynamics and chromophore orientational dynamics. |
| 저자 |
오진우, 김도영, 최칠성, 문인규, 황의중, 김낙중
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| 소속 |
한양대 |
| 키워드 |
photorefractive; speed; space-charge field; chromophore
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| E-Mail |
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